Skill Development Course First Aid for Divers Instructor Manual First Aid for Divers Instructor Manual Contents Course Arrangements 1 Introduction 4 Principles and Priorities of First Aid 6 Summoning Assistance 11 Shock 14 First Aid Kits 17 Wounds and Bleeding 20 Burns 25 Injuries to Muscles, Bones and Joints 30 Other Conditions 36 Open Forum, Debrief and Disperse 48 Casualty Examination - practical 50 Bandaging - practical 52 Dressings, Splinting and Moving Casualties - practical 54 Appendix A: Incident Statistics 56 Appendix B: FAD Casualty Assessment Checklist 57 Issue 1.1, November 2009 Copyright © British Sub-Aqua Club 2009 Published in the United Kingdom British Sub-Aqua Club, Telford’s Quay, South Pier Road, Ellesmere Port, Cheshire CH65 4FL Telephone: 0151-350 6200 Fax: 0151-350 6215 www.bsac.com All rights reserved. This Instructor Manual may not, in whole or part, be copied, photocopied, reproduced or translated, or converted into any electronic or readable form without prior written consent of British Sub Aqua Club V1.1 Copyright © BSAC 2009 i First Aid for Divers Instructor Manual BSAC is grateful the members who contributioned to the development of this course and its supporting materials. In particular: Andy Botten Andy Proctor Anjali Shah Martin Hammond Richard Scarsbrook Trevor Davies (original author) Where illustrations have been sourced from the internet or from photographers who have requested attribution, the acknowledgement and the licensing arrangement where applicable is shown on the Notes page of the first Powerpoint slide of the relevant lesson. ii V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Course Arrangements First Aid for Divers Course Aim The course aim is to teach the basics of first aid likely to be needed in the BSAC diving environment, making use of the resources likely to be available at the time including improvisation of dressings and splints using materials and equipment commonly available at the dive site or in a boat. The course focuses on the recognition and treatment of conditions which are not covered in the BSAC Diver Training Programme. First Aid Kits Wounds and Bleeding Bandaging practical Course Overview This manual contains the advice current at the time of writing. Updates and new versions are published on the BSAC website from time to time. Instructors should always check there to ensure that they are using the latest information. This course teaches BSAC members basic first aid relevant to the types of accident and illness that may arise in the sport diving environment, many of which are not specific to diving but just happen when the individual is engaged in diving related activities. Throughout the course instruction should concentrate on the real-life situation, emphasising the practical content with only sufficient explanatory theory to put the practice into context. Burns Injuries to Muscles, Bones and Joints The emphasis of this course is somewhat different to those run by the major first aid organisations, where first aid is taught for the non-diving situation leaving divers themselves to resolve the application of the techniques taught to diving situations. The course contains explicit images of actual injuries, which some people might find disturbing. Session Contents Mins Introductions Introduction and domestic 15 arrangements Principles and Principles, role of Priorities of First first aider, multiple 30 Aid casualties, hygiene Casualty Examination 40 practical Getting help at Summoning sea, getting help 10 Assistance on land Causes, signs Shock and symptoms, 15 treatment V1.1 Copyright © BSAC 2009 Small boat kit, dive manager’s kit, supplementing the kits, improvisation Bleeding and clotting, types of wound and causes, general treatment principles, internal bleeding Other Conditions Dressings, Splinting and Moving Casualties - practical. 15 20 60 Classification of burns, types of burn and causes, general treatment principles, electrical burns, chemical burns, knowing when hospital treatment is needed The skeleton, sprains and strains causes signs symptoms and treatment, fractures and dislocations causes signs symptoms and treatment, practical issues Signs symptoms and treatment of: minor barotrauma - mask squeeze, ears, sinuses, teeth; l i fe - t h r e a te n i n g conditions - severe head injury, stroke, heart attack, blast injury; miscellaneous marine animal stings, seasickness, hypothermia, hyper thermia, exhaustion 15 20 30 90 1 Course Arrangements First Aid for Divers Instructor Manual Open Forum, Debrief and Disperse published on bsac.com, along with a procedure for applying for approval of training not on the list. 20 Total Lead instructors must also self certify that they have demonstrated their knowledge of the course content and competence in all the skills taught, to the standards defined in this Instructor Manual, to another BSAC Open Water Instructor or above within the year preceding the course. An Instructor Declaration form is included with the course materials. 380 6h20 Duration The above timetable represents the recommended arrangement for a one day course. If necessary the course may be run over a longer period, such as a series of evening sessions, provided that content, duration and order of the lessons is not changed. In this case instructors should check that their students do not lose knowledge and skills between sessions. Entry Level Any BSAC member. Experience on dive trips, and knowledge of diving procedures and diving related physiology to at least Ocean Diver level is advantageous. Qualifications Awarded Qualification card confirming course attendance, supplied by BSAC HQ on payment of fees and confirmation of attendance on the course. There are no examinations or assessments. First aid skills deteriorate rapidly if not used or practiced regularly so it is recommended that students undertake a refresher course at least every three years. First aid skills deteriorate rapidly if not used or practiced regularly so the lead instructor should verify that all the assisting instructors have an appropriate knowledge of the course content and an appropriate level of competence in the skills being taught. ● Student:Instructor ratio The student:instructor ratio for practical training should not exceed 12:1. There is no limit for theory-only sessions. Overall student numbers may also depend on the available space and equipment for practical sessions. During practical sessions students will normally work in pairs. Equipment Each student requires: • triangular bandage • dressing material) (with integral bandaging • diving gloves/hood Course Registration • weightbelt (weights are not required) Branches wishing to run a Skill Development Course must order the packs two weeks in advance from the BSAC Shop and pay the relevant course pack/ registration fees for all students on the course. This can be done online via the BSAC website, by telephone, or by post. • fins Consult the BSAC website or HQ for current details and associated declaration and report forms. Instructor Requirements ● Qualifications The lead instructor must be a BSAC Open Water Instructor or above who has attended First Aid for Divers, or has equivalent or more extensive training approved by the Chief Instructor for Rescue Skills. A list of approved training is 2 Two first aid kits are required for demonstration purposes: one suitable for use in a small boat and one for use in a large hard boat or as a shore based dive manager’s kit. A selection of items that commonly appear on a dive site (such as oars, long-sleeved jackets, jumpers, knife straps and sheaths, lifejackets, snorkels, electrical insulating tape, survival blankets and old rags of various sizes) is required for practical sessions.The intention of the course is to teach divers how to improvise to supplement what is available in their first aid kit. For the casualty examination lesson, a number of small torches will be required. Sufficient quantities of the above equipment will V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Course Arrangements be needed to ensure that all pairs of students have adequate resources during the practical sessions. Students will need to kneel or lie on the floor at times during the course, and should wear clothing appropriate to the venue. Venue Facilities A suitable classroom with teaching aids for the presentation of theory lessons. Practical sessions require sufficient suitable space for 'casualties' to lie on the floor while 'first aiders' work on them. Administration HQ will supply the appropriate course packs and a Course Report form, on receipt of an order. After the course the organiser should return the completed form together with a completed Instructor Declaration form without delay to BSAC HQ, who will issue qualification cards to students and record their course attendance on the membership database. For regionally run courses: on completion of the course, instructors should forward outstanding fees, accounts and expense claims etc, to the course organiser Costs BSAC course fees cover the cost of course packs and certification cards, and are payable in advance to register and purchase student packs. For branch run courses, instructor expenses, venue fees, and any other costs are the responsibility of the students and their organisers. For regionally run courses, students must pay the appropriate regional course fee to the Skill Development Course Organiser at time of booking. V1.1 Copyright © BSAC 2009 3 Theory Lessons First Aid for Divers Instructor Manual INTRODUCTION Lesson Objectives This lesson sets the scene for the course overall. It briefly outlines the course content, domestic/logistics and timetable. Achievement Targets At the end of this lesson students should: ● understand the objectives and structure of the course. ● understand what is required of them during the course. ● understand the domestic and logistical arrangements for the course. ● understand the course timetable. Introduction Note for instructors: the comments in [square brackets] that occur throughout this manual are there to help instructors deal with questions that might come up. They are not part of the standard course material. First Aid for Divers Introductions Introduce the instructors, and get the students to introduce themselves. Introductions can be minimised or omitted on courses where the participants already know one another. Ask the students to describe accidents whilst diving that they have been involved in, whether as casualty, helper or bystander, or ones they know of in their branch. Course aims ● first aid for common injuries and illnesses The aim of FAD is to instruct divers in the first aid actions to be taken when dealing with injuries and illnesses which are likely to occur during club diving activities. [Appendix A contains data summarised from several annual incident reports, illustrating relative frequency of various types of accident and injury.] 4 ● specific to club diving situations The emphasis of the course is somewhat different to those run by the major first aid organisations, where first aid is taught for the non-diving situation, thus leaving the diver to resolve the application of the techniques taught to diving situations. The First Aid for Divers course aims to avoid this by concentrating on the real-life situation giving emphasis to practical content with only sufficient explanatory theory to put the practice into context. ● other BSAC safety training Explain that this course focuses on injuries and techniques not covered elsewhere in the suite of BSAC Rescue Skills SDCs (Practical Rescue Management Course, Oxygen Administration, Automated External Defibrillator, and the Lifesaver Awards) or in the Diver Training Programme. This is why basic life support, oxygen administration, DCI and gas poisoning are absent from FAD: they are adequately covered elsewhere. V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Theory Lessons Use of oxygen It is normal practice to carry emergency oxygen on dive trips, because it is such an effective first aid treatment for DCI and similar conditions. Oxygen can also supplement first aid measures for some of the injuries covered on this course. to increase their effectiveness. Where this is the case it is mentioned in the text. If oxygen is not available the other first aid measures are still appropriate. Oxygen should only be administered by those who have been trained in its use. Remind students that oxygen should not be given to non-divers. People with conditions such as chronic lung diseases may suffer adversely, possibly to a fatal extent, by the administration of oxygen. As these people would be precluded from diving, divers should restrict themselves to administering oxygen only to other divers. Domestic arrangements Fire exits, catering facilities, house rules, etc. Locations Cover the different venues that will be used during the course, if necessary Timings Outline the timetable for the course, including breaks, lunch, and finish time. Either issue a printed timetable, or add it to this VA. Guideline durations for each session are provided in the Course Arrangements section of these notes. Course outline Principles and priorities of first aid Casualty examination – practical Summoning assistance First aid kits Shock Wounds and bleeding Bandaging – practical Burns Miscellaneous injuries and conditions Injuries to muscles, bones and joints Dressings, splinting and moving casualties – practical Open Forum, debrief and disperse V1.1 Copyright © BSAC 2009 5 Theory Lessons First Aid for Divers Instructor Manual PRINCIPLES AND PRIORITIES OF FIRST AID Lesson Objectives This lesson explains the basic principles of first aid, and describes how first aid fits into the overall process of rescue management. It also covers prioritisation when dealing with multiple injuries and multiple casualties, and addresses hygiene issues for both casualties and first aiders. Achievement Targets At the end of this lesson students should: ● be able to list the priorities of first aid ● understand the role and responsibilities of the first aider ● know what to do if there are multiple casualties ● be able to prioritise hygiene appropriately Principles and Priorities of First Aid Principles of first aid This VA serves as the introduction for the lesson. Subsequent VAs cover the implications of these basic principles on what a first aider does and doesn't do. Definition ● accepted principles of treatment ● any injury or sudden illness ● available facilities or materials Priorities Extracting as much information as possible from the students, explain each of the priorities of first aid: ● ● ● preserve life prevent deterioration promote recovery Do the MINIMUM necessary Stress that the object is to do the MINIMUM necessary to accomplish the above. Well intentioned attempts to do more may complicate the subsequent treatment administered by medical personnel. Role of a first aider Define the role and responsibilities of the first aider: Assess the situation 6 V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Theory Lessons Assess what is wrong History, signs and symptoms. Signs are visible to the first aider eg, swelling, discolouration, vomiting, casualty's response to stimuli. Symptoms are reported by the casualty and cannot be directly observed by the first aider eg, nausea, level of pain, dizziness. Give appropriately prioritised treatment Give immediate and appropriate treatment Arrange for removal to medical aid Covered in the next lesson Remain with the casualty ● Until recovered ● Or evacuated Responsibility ends when ● Handed over to medical personnel ● Report given Assess the situation Rescue Management is covered in depth in the BSAC Diver Training Programme Dive Leader course, and in the Skill Development Course Practical Rescue Management. Be calm and take charge Many diving incidents involve some form rescue in order to get the casualty from the water to a place of safety where first aid treatment can be given. This course does not teach the skills required for the management of diving rescues, but first aiders need to be aware that even when the casualty is on dry land or on a boat hazards may exist which need to be managed. Ensure safety ● yourself ● casualty People with conditions such as chronic lung diseases may suffer adversely, possibly to a fatal extent, by the administration of oxygen. As these people would be precluded from diving, divers should restrict themselves to administering oxygen only to other divers. ● bystanders Guard against further casualties Reassure the casualty Get others to help V1.1 Copyright © BSAC 2009 7 Theory Lessons First Aid for Divers Instructor Manual Casualty assessment A prompt and accurate evaluation of the casualty's injuries, sufficient to allow the correct first aid treatment to be rapidly applied, could be the difference between life and death. Exact diagnosis is left to the doctors, once the casualty has reached them. This course deals mainly with the evaluation of non-diving conditions. In the practical session which follows, students will use the FAD Casualty Assessment Checklist which helps carry out assessment in a systematic and organised way. [Casualty evaluation for a diving incident is covered in lesson DT4 of the BSAC Dive Leader course, and in the Oxygen Administration Award, where the appropriate conditions are addressed. The Casualty Assessment form which supports the evaluation of diving incidents is not suitable for FAD because it covers a different range of conditions.] Incident history A knowledge of what happened can help diagnosis. For example, it may suggest which types of injury are likely and which are unlikely. Signs Signs are features of the casualty's condition which can be observed by the first aider, such as bleeding, swelling, vomiting, pulse and responsiveness. Symptoms Symptoms are features which are reported by the casualty but cannot be observed by the first aider, such as feeling sick and headache. Preserve life Explain the practical impact of the priorities of first aid on the treatment administered: Basic Life Support ● Airway ● Breathing ● Circulation [now sometimes stated as ‘Compressions’. Some authorities feel that arguments about which is ‘correct’ are rather PC]. Control bleeding Prevent deterioration Limit the effects ● treat shock ● dress wounds ● immobilise large wounds and fracture ● comfortable position Promote recovery Reassure the casualty 8 V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Theory Lessons Relieve pain Handle gently Keep warm Arrange for evacuation Multiple casualties Extend the prioritisation to cover the situation where there are multiple casualties. If there are insufficient resources to treat all casualties at once the most critical must be dealt with first with the others treated as and when circumstances allow. Caution that the noisiest casualties are rarely the most severely injured. Priorities ● non-breathing ○ airway ○ resuscitation ● unconscious breathing ○ recovery position ● severe bleeding Identify and treat most serious condition first Treat others as circumstances allow Noisiest casualty rarely most severely injured Hygiene – casualties In a life threatening situation saving a life remains the priority but in less critical situations relatively minor problems could be aggravated by infection. Major injuries ● saving life is priority ● worry about infections later Minor injuries ● cleanliness essential ● prevent minor problem being aggravated by infection Hygiene - first aider Body fluids have potential to be infectious Body secretions have the potential to be infectious (eg saliva, blood) but the likelihood depends not only on the particular secretion (eg saliva least likely, then blood, urine, faeces) but also on the casualty’s condition. V1.1 Copyright © BSAC 2009 9 Theory Lessons First Aid for Divers Instructor Manual Keep risk in proportion For the rescuer the main considerations are hepatitis B and HIV. Fears about contracting these should not be allowed to get out of proportion. Protection ● infections need entry point Being splashed with infected blood alone will not cause infection. Infected blood needs a means of entry for the rescuer to be infected (eg, an open cut). ● intact skin whole skin is an effective barrier ● disposable gloves In a controlled situation appropriate measures can be taken (eg, wearing surgical gloves from a first aid kit) but where this is not possible their lack should not be allowed to impact the first aid administered. Afterwards ● wash off body fluids with soap/water ● clean spilt body fluids with bleach ● post event checks available Post event checks for exposure are available if there is any doubt at all, with appropriate treatment to counter Hepatitis B (gamma globulin) and to greatly reduce the probability of infection from HIV. Summary Preserve life Prevent deterioration Promote recovery Minimum necessary First aid tasks ● assess the situation ● assess what is wrong ● give appropriate prioritised treatment ● evacuate the casualty to medical attention Multiple casualties Hygiene 10 V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Theory Lessons SUMMONING ASSISTANCE Lesson Objectives This lesson covers the procedures for summoning assistance at the coast and inland for both diving specific and 'non-diving' accidents. [Summoning assistance is covered in the BSAC Diver Training Programme in lesson DT9.] Achievement Targets At the end of this lesson students should: ● know how to summon assistance for injuries and illnesses at sea ● know how to summon assistance for injuries and illnesses on land Summoning Assistance Contrast the greater familiarity with diving incidents that the emergency services around the coast have when compared to those inland, and the implications of this. Summoning assistance Who you should call for assistance depends on the location and the nature of the problem. This VA summarises what to do, and the following VAs give details of how to make contact. At sea ● coastguard for all types of emergency On land ● DCI – BHA/RN Diver Helplines The contact for advice on treating suspected DCI casualties (not covered on this course). [Rarely the casualty may have suspected DCI and an injury whose recommended treatment conflicts with the recommended treatment for DCI (egs heart attack + DCI - aspirin or no aspirin? Suspected internal bleed/heavy bleeding from legs/shock + DCI - elevate legs or legs flat?). There is no correct answer for all circumstances. Contact the Diver Helpline for advice.] ● ● ● lost diver – police injuries – ambulance write down incident details ○ incident history ○ signs & symptoms ○ first aid given ○ give to ambulance crew ○ send with casualty If the casualty is evacuated by other means eg, lifeboat, helicopter, you should still send written details. V1.1 Copyright © BSAC 2009 11 Theory Lessons First Aid for Divers Instructor Manual Emergency services at sea All contact, including that with the BHA/RN Diver Helplines will be via the Coastguard, which is contacted by VHF radio on channel 16. ● Where life is in danger, or a vessel is in grave and imminent danger, the call should be prefixed by the words MAYDAY, MAYDAY, MAYDAY. [The call should be preceded by a distress alert using a DSC-equipped radio, if available – this is the method most likely to ensure the distress call is heard]. ● Where medical aid is required the call should be prefixed by the words PANPAN, PAN-PAN, PAN-PAN ● Where a provocative event has occurred and no symptoms are displayed, then a routine call for medical advice may suffice The call should contain information regarding the vessel’s identity, its position and intentions, the nature of the emergency and what assistance is required. Any instructions from the emergency services must be communicated back to the rescue manager. [Note: For courses run outside the UK, instructors should substitute the corresponding local information.] Contact coastguard on VHF DSC and/or channel 16 ● Mayday = life in imminent danger ● Pan Pan = assistance urgently required Give full details ○ vessel’s name/call sign ○ position and intentions ○ nature of emergency ○ assistance required Report back to rescue manager essential Emergency services on land For many incidents (such as lost divers or near drowning) the Police and/or Ambulance Services will be required. Around the coast some incidents may require the assistance of the Coastguard. All are contacted by the normal 999 or 112 telephone call. Where decompression illness or burst lung are suspected, however, the British Hyperbaric Association/Royal Navy (BHA/RN) Diver Helplines should be contacted. The reason for the different number in Scotland is because, unlike the rest of the UK that comes under one Health Service, Scotland has its own. On initial contact, details of the nature of the incident, its location and the numbers of casualties involved should be given. Again, a report back to the Rescue Manager is essential. [Note: For courses run outside the UK, instructors should substitute the corresponding local information.] Police/Ambulance/Coastguard ● Telephone: 999 or 112 British Hyperbaric Association / Royal Navy Diver Help Line 12 V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Theory Lessons Make sure these numbers are in your mobile! [If appropriate get the students to store the numbers in their mobiles immediately, or at the first break.] ● ● England, Wales & N. Ireland: 07831151523 Scotland: 08454086008 Give full details ● nature of incident ● location ● personnel involved Report back to rescue manager essential V1.1 Copyright © BSAC 2009 13 Theory Lessons First Aid for Divers Instructor Manual SHOCK Lesson Objectives Shock is present to a greater or lesser degree in all injuries and is referred to frequently in other lessons. The main purpose of this lesson is to ensure that the students clearly understand what shock is, how it occurs, its recognition and, although it cannot be treated directly, what to do about it. [Shock is covered in the BSAC Diver Training Programme in lessons DT3 and AT4] Achievement Targets At the end of this lesson students should: ● understand the definition of shock ● know the causes of shock ● be able to list the signs and symptoms of shock ● be able to list the actions to be taken for casualties in shock Shock Shock Circulatory shock is a life-threatening medical condition. It is not the same as the emotional 'shock' which can occur in reaction to a frightening or distressing event, such as witnessing an accident. Inadequate circulation Shock occurs when an injury or illness causes a drop in the flow of blood through the body. ● tissue damage due to inadequate oxygenation and waste removal Since the blood delivers oxygen and nutrients to the tissues, and carries away waste products, shock causes tissue damage. Initially the body responds by trying to maintain the circulation: the heart beats faster, the blood vessels constrict, and the kidneys retain fluid in the circulation. In serious cases the body's responses may not be enough and a downwards spiral can set in where, for example, insufficient oxygenated blood reaches the heart causing a further fall in output, and so on. ● life-threatening Eventually cells in organs and tissues throughout the body may begin to die, producing further waste products and damaging the body's ability to function even more, leading ultimately to the patient's death. Consider in all major injuries Shock should be considered in most injuries, but does not occur in minor injuries (except for emotional shock, which is a different condition). Causes ● reduced blood volume (bleeding, burns, bruising, prolonged seasickness) aka hypovolaemic shock. Anything that leads to excessive loss of fluid from the circulation can lead to 14 V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Theory Lessons hypovolaemic shock. The lost fluid may still be retained within the body eg, internal bleeding, and oedema (blisters, swelling). ● massive dilation of blood vessels (fainting, hyperthermia) aka low resistance shock, neurogenic shock. May result from head/spinal injury. ● inadequate cardiac output (heart attack, pulmonary barotrauma) aka cardiogenic shock Pulmonary barotrauma may involve pneumothorax, which can put pressure on the heart, reducing its output. Pneumothorax can also result from other, nondiving injuries. ● allergic reaction to drugs, food or stings aka anaphylactic shock ● removal from the water after prolonged immersion aka immersion shock Dealing with shock Signs & symptoms ● weakness, dizziness ● pallor, sweating ● rapid pulse and breathing ● breathlessness, unconsciousness Treatment ● contact the emergency services ● reassure, keep casualty quiet ● lay casualty down, legs raised (but not for DCI or burst lung) ● keep warm and comfortable ● administer oxygen ● monitor condition ● give nil by mouth (except for DCI) ● treat prime cause Immersion shock If a casualty has spent a long period immersed in the water, (for example lost divers) the muscle tone relaxes, including those in the walls of the blood vessels, due to the support from the water countering the effects of gravity. If removed from the water in an upright position, gravity causes the casualty's blood to descend towards the lower limbs, which the relaxed muscle tone is unable to counter. The result is that the vital organs are starved of a blood supply. First aid ● keep casualty in horizontal attitude at all times ● discourage any movement or activity by the casualty ● other actions as for shock V1.1 Copyright © BSAC 2009 15 Theory Lessons First Aid for Divers Instructor Manual Summary Caused by inadequate circulation Life-threatening condition Expect in all major injury cases Treat prime cause Legs raised, O2, TLC, no fluids, evacuate Special cases ● immersion shock ● DCI 16 V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Theory Lessons FIRST AID KITS Lesson Objectives This lesson considers the contents of first aid kits, for dive expeditions and for boats. It also introduces the idea of improvising when a first aid kit is limited or not available, by using materials that should be available in diving situations as alternatives. Achievement Targets At the end of this lesson students should: ● know the recommended contents of first aid kits ● have considered practical alternatives to conventional first aid materials using items commonly found in the diving environment Additional visual aids Small boat and large boat/dive manager's first aid kits for demonstration. The demonstration kits should include waterproof cases, and examples of individually wrapped contents. First Aid Kits Cover the typical contents of a small boat kit and an offshore/dive manager's kit using the demonstration kits. Highlight the particular considerations for the 'wet' environment and the necessity for each item to be individually wrapped and stored in a waterproof container. Include a reminder that no kit will cover all eventualities and that improvisation should not be forgotten. First aid kits should be replenished as soon as practicable after use so that they remain at full capacity at all times. First aid kits Tailor to expected circumstances ● small boat kit ● dive manager’s/hardboat kit ● others eg tropical, expedition Waterproof container The whole kit should be housed in a waterproof container. Supplement by improvisation Supplement the kit by improvisation using boat equipment. Cover this in more detail after looking at the contents of first aid kits in detail. Small boat kit The following is the minimum contents of a first aid kit for inshore (up to 3 miles) use, as recommended in the Combined Diving Associations Guidelines for the Safe Operation of Member Club Dive Boats (CDA Guidelines). [The guidelines refer to ‘large’, ‘medium’, etc, sizes. As is common in first aid guidelines even from well known organisations, these terms are not defined. The reality is that there is no standard. It is possible to V1.1 Copyright © BSAC 2009 17 Theory Lessons First Aid for Divers Instructor Manual buy a selection of dressings from different manufacturers all labelled ‘large’ and all different sizes. ‘Large’ is bigger than ‘medium’ but smaller than ‘extra large’.] 2 x Large sterile dressings 1 x Large pack of assorted adhesive dressings 2 x Large triangular bandages If the triangular bandages are bought and kept as sterile items, they will double as large wound dressings 1 x Rescue blanket or large polythene bag 6 x Safety pins You can use adhesive tape instead if necessary: some organisations have banned safety pins from first aid kits on health and safety grounds! Disposable gloves Items individually wrapped in sealed plastic bag This prevents unused items getting contaminated when the main container is opened. Dive manager's kit The following is the minimum contents of a first aid kit for offshore (over 3 miles) use, as recommended in the CDA Guidelines. Offshore kit (in excess of 3 miles): 1 x First aid instructions 6 x Each small, medium and large standard dressings 1 x Large pack of assorted adhesive dressings 4 x Large triangular bandages 10 x Assorted safety pins 3 x 50mm roller bandages 1 x 50mm crepe bandage 1 x Roll 25mm zinc oxide plaster 1 x Set of scissors 1 x Set of tweezers 1 x Pack of sterile cotton wool 2 x Pairs of disposable gloves 1 x Rescue blanket or large polythene bag 1 x Pocket mask, or suitable barrier, for use when giving AV As for a small boat kit Items should be individually wrapped and sealed in plastic bags, and the whole kit should be housed in a sturdy weatherproof container. The kit can be supplemented by improvisation using boat equipment and other materials to hand. Additional items may be necessary if the diving is to take place in remote locations where medical resources are not readily available and/or the expedition is of a long duration. When going abroad for a typical commercially-organised group holiday, if every member of the trip takes an individual selection of items, that means that the group will have a good selection of items, in quantities to deal with anything. Finally, 18 V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Theory Lessons get the students to think how they could use common dive-related items as a substitute for conventional first aid materials. Explain that improvisation will be a theme running through the practical lessons on the course. V1.1 Copyright © BSAC 2009 19 Theory Lessons First Aid for Divers Instructor Manual WOUNDS AND BLEEDING Lesson Objectives The lesson outlines the basic mechanism of blood clotting and explains the consequent need to keep the casualty still to prevent break-up of clot formations. It covers the major types of wound, giving examples of how each may occur in diving related activities, and describes the different ways of controlling bleeding, explaining how each works and when each would be used. Achievement Targets At the end of this lesson students should: ● know the major types of wound and their potential causes ● understand the general first aid measures to be used for bleeding ● understand the measures to be taken for internal bleeding Wounds and Bleeding Contents Types of wound Bleeding and clotting Treatment Wounds ● Any damage to the skin or underlying tissues Wounds come in all shapes and sizes, and may stem from a wide range of causes. The wounds that divers have to deal with are most likely to be acute injuries resulting from an accident. ● Open wound Open wounds are usually easy to spot, and the consequences are obvious. ○ skin is breached ○ blood lost from the body ○ allows infection into the body Very large wounds may allow internal organs, such as intestines, to spill out of the body. ● Closed wound It is important to realise that closed wounds are common, and that their consequences can be just as life-threatening as those of open wounds. ○ underlying tissues damaged beneath intact skin ○ blood lost from circulation but NOT from the body 20 V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Theory Lessons Types of wound Open ● incision These are slicing wounds made by something sharp like a knife, a piece of broken glass, or a rusted piece of wreckage. An incision usually has clear edges which fit together well if held together. An incision may be as trivial as a paper cut, or a significant injury which cuts through major blood vessels and organs. ● laceration A laceration is a wound that is produced by the tearing of soft body tissue. Lacerations can result from impacts with blunt objects, contact with machinery, or crushing. This type of wound is often irregular and jagged. A laceration is often contaminated with bacteria and debris from whatever object caused it. Typical causes during diving include falling heavily onto objects such as a bollard, having heavy objects such as cylinders fall on you, crewing injuries in heavy weather at sea, and propeller injuries. ● abrasion Abrasions, if minor, are also called scrapes or grazes. They occur when the skin is rubbed away by friction against a rough surface egs, chafing from the tubes of a RIB when clinging on in rough weather, rope burns, and skinned knees from falls. An abrasion usually appears as lines of scraped skin with tiny spots of bleeding, but more serious abrasions can remove tissue to a substantial depth. Divers may receive abrasions if they have to exit the water over rocks in a rough sea, especially if they are not wearing gloves. Divers who hire motorcycles or quad bikes while waiting for a late flight on the last day of their warm water liveaboard trip risk serious abrasions if they fall off without proper protective clothing! ● puncture Puncture wounds are deep, narrow wounds caused by sharp objects such as knives, nails, broken glass. There may be little bleeding around the outside of the wound. Punctures may have pieces of debris broken off in side, and are prone to infection. In a diving setting, puncture wounds often result from marine animal bites, or from being impaled by fish or urchin spines, possibly venomous such as a stonefish. They may also arise from stepping on sharp objects, and from getting impaled with fish hooks. Serious puncture wounds can be caused by being impaled on a sharp object such as railings, or underwater, being driven onto spikes of wreckage by wave action. ● 'gunshot' A 'gunshot' wound is caused by an object entering the body at a high velocity. If the missile releases much of its kinetic energy inside the body there may be massive damage. The entry wound may also be accompanied by an exit wound, and either or both can vary from a small hole to a large ragged injury. Gunshot wounds might occur if a diver was hit by flying debris after a cylinder explosion. Closed ● contusion Contusions are the result of a heavy impact that causes an internal injury without breaking the skin. Contusions show up as bruising. The types of accident that lead to contusions in diving situations are similar to those that cause lacerations. ● internal bleeding V1.1 Copyright © BSAC 2009 21 Theory Lessons First Aid for Divers Instructor Manual Internal bleeding may occur without any outward sign; it may only show up on X-rays or other medical images. Internal bleeding is likely following deep puncture wounds, and after impacts involving rapid deceleration of the body, such as high speed accidents. Bleeding and clotting Ruptured blood vessels When blood vessels, whatever their size, are cut or punctured in an accident, blood cells escape through the hole. This is bleeding. The damaged cells in the blood vessel release messenger chemicals into the bloodstream. ● ● blood cells escape wounded tissue releases chemicals Platelets The messenger chemicals are detected by small specialised blood cells called platelets. They begin to stick to the walls of the damaged blood vessel in the vicinity of the wound. They also release other messenger chemicals which active further processes in the chain. One messenger causes the injured blood vessels to constrict, reducing the blood loss. Other messengers cause a sequence of events which results in the formation of long sticky threads of a substance called fibrin. ● ● ● ● stick to edges of wound release further chemicals blood vessels contract fibrin threads form Blood clot The fibrin threads form a mesh-like net over the hole in the blood vessel, trapping blood cells and preventing them from leaking out. Eventually this structure coagulates and hardens forming a clot, which on a surface wound will eventually appear as a scab. Once clotting has occurred, further healing processes begin within hours, but this is normally well after the first aider has handed the casualty over to the medical services. ● ● fibrin threads form mesh over wound, trapping blood cells clot hardens, sealing hole Keep casualty still to help clotting The crucial points for the first aider to remember are that the vital process of clotting takes time, and that in its early stages the clots are delicate, which means that the affected parts of the casualty's body must be kept still to allow healing to occur. [Further healing processes begin within hours of injury, but these are beyond the scope of first aid, normally occurring well after the first aider's job is done.] Treatment principles Treatment of wounds involves stopping any bleeding, then cleaning and dressing the wound to prevent infection. Additional medical attention may be required if the effects of the wound have compromised the body's ability to function effectively. 22 V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Theory Lessons Minimise blood loss Help body cope with blood loss Prevent infection Treat for shock Minor open wounds Treatment ● clean wound ● dry wound ● apply sterile dressing ● apply firm bandage Severe bleeding Severe bleeding is immediately life-threatening, so controlling the bleeding is the top priority, and infection control is left for the medical professionals to deal with later.. Treatment ● apply pressure ● raise & support injury ● apply sterile dressing ● if more required apply further dressings on top ● bandage firmly ● DO NOT use tourniquets or pressure points [Pressure Points: some agencies still teach the use of pressure points for indirect control of severe bleeding. Also the current edition (September 1998) of Safety and Rescue Skills for Divers recommends it. If asked, provide the following explanation of why BSAC recommends against its use: the technique is only effective if practised, and the skill is unlikely to be retained for long without practice. BSAC thinks it is counter-productive to teach a method which is likely to fail when attempted, especially when it would be used in situations where every second counts.] ● immobilise affected area to help blood clotting Severed body part Wrap any severed body part, such as a finger, in a plastic bag, cling film, or soft material, and keep it cool. Ideally, place the severed body part in ice, but do not put it in direct contact with the ice. Make sure it travels to hospital with the casualty. If possible, label the bag, especially if there is more than one casualty who has suffered an amputation. ● ● ● bag it keep cool and dry send with casualty V1.1 Copyright © BSAC 2009 23 Theory Lessons First Aid for Divers Instructor Manual Internal bleeding signs & symptoms Pain / tenderness Bruising Blood in spittle / urine Shock without obvious blood loss ● weakness, dizziness ● pallor, sweating ● rapid pulse and breathing ● breathlessness, unconsciousness Internal bleeding treatment Lie down (legs raised) Arrange evacuation Record ● breathing ● pulse ● response levels ● treatment Recovery position if casualty loses consciousness Summary Open wounds Closed wounds Clotting Hygiene Pressure No tourniqets or pressure points 24 V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Theory Lessons BURNS Lesson Objectives The lesson explains the classification by depth and area, "rule of nines", and the general principles of treatment (remove heat, treat shock, prevent infection) highlighting any considerations peculiar to any of the types of burn (eg preventing chemical contamination from being spread to unaffected areas). Achievement Targets At the end of this lesson students should be able to: ● assess a burn in terms of cause, extent, location and depth of the burn. ● provide appropriate treatment to a casualty with a burn ● recognise when a casualty with a burn needs to be taken to hospital for treatment Burns Contents Classification The severity of a burn depends on its area, its depth, and to a certain extent, on what caused it. The first aider needs to be able assess these things in order to decide whether or not to call for medical evacuation, and to be able to explain the injury to medical personnel by telephone or radio if necessary: whilst at sea, for example. Signs and symptoms Treatment Types and causes Concentrate on the sort of burns that divers are most likely to come across - dry burns (eg, friction burns from ropes; from hot engines), scalds from hot water, chemical burns from cleaning non-ferrous, sunburn on tropical holidays. Dry burns ● flame Fires, clothes on fire. Extinguish burning clothing as soon as possible. In a diving situation it may be possible to jump in the water, provided it does not endanger the casualty. Otherwise, smother the flames with a blanket or coat. ● hot surface Exhausts, cookers, pots and pans. High temperature surfaces can cause burns very quickly: fortunately often casualties can move the affected part away as soon as they feel the pain. ● friction Ropes. ● electricity Faulty wiring. Home-made shore power set ups on boats. Do not touch the casualty directly unless the current is turned off. Move them with a non- V1.1 Copyright © BSAC 2009 25 Theory Lessons First Aid for Divers Instructor Manual conducting object such as a wooden stick if necessary. ● radiation Sunburn. Burning takes place relatively slowly. Varies with time of day. Burning in the tropics, and in places where there is a hole in the ozone layer can be several times faster than in the UK. Scalds ● hot liquid Cooking spillages, engine cooling water, hot oil. Soaked clothing will continue the burning until removed or cooled. Chemical Cleaning fluids for non-ferrous metal. Area Bigger area = more severe Burn area is expressed as a percentage of the patient's total skin area. The following are techniques for estimating it. Palm of casualty’s hand = 1% Note that it is the casualty's hand not the first aider's hand that is used. Wallace’s rule of 9s ● head ● arm ● chest ● upper back ● abdomen ● lower back ● thigh ● lower leg [These figures are for normal adults. There are different versions for children, and for the obese. However, the Rule of 9's is close enough for first aid purposes. The rule of 9s adds up to 99%: the missing 1% represents the genitals (it really does).] Burn depth, signs & symptoms The skin is the body's largest organ. The diagram shows a cross-section through it. The thickness of the skin varies from person to person, and at different places on the body, but typically it is only about 2mm thick. It consists of three different layers, for which simplified descriptions are given below. The red area at the bottom of the diagram represents the tissues which lie beneath the skin. Skin structure ● epidermis - waterproof The thin outer layer of the skin does not contain blood vessels or lymph ducts. 26 V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Theory Lessons It is a waterproof barrier which prevents fluids from leaking out of the body, and prevents infections and other harmful agents from getting in. Sweat is able to pass through via pores. ● dermis - blood vessels, nerves, muscles The dermis contains blood vessels, muscles (erector muscles for skin hairs), nerve endings, and many other components. ● subcutaneous tissue Subcutaneous tissue is a fatty layer which lies above the body's internal tissues. The thickness of this layer varies markedly between different parts of the body (eg, feet, buttocks), and between different people (eg, Sumo wrestlers, v 'size 0' fashion models). Burn classification ● superficial aka 1st degree burns ○ red/swollen/painful ● partial thickness aka 2nd degree burns ○ red/swollen/painful May have a weeping, wet appearance ○ exposed to infection Protection from the epidermis is lost ○ blisters Fluids can leak out and form blisters. ● full thickness aka 3rd degree burns ○ pale/waxy/possibly charred Waxy white burns may be mistaken for unburnt skin. Generally dry appearance, and numb. ○ serious The dermis and epidermis have been destroyed, and will not re-grow without grafting. Tissues beneath the skin may also have been damaged (sometimes referred to as 4th degree burns, as in the photograph). ○ Blisters Electrical burns Effects vary depending on a variety of items including the voltage, which parts of the body are involved, how damp the victim is, and the length of time the current flows. Possible features ● superficial surface injury ● extensive damage to lower layers Current may enter the body at one point and exit at another, causing damage all along the path, which may be internal. ● cardiac arrest possible V1.1 Copyright © BSAC 2009 27 Theory Lessons ● First Aid for Divers Instructor Manual electric shock risk for first aider Ensure that the current is switched off before you touch the casualty. Alternatively push or pull the casualty away from the electrical source with a non-conducting object such as a dry branch or a broom handle. Treatment – superficial burns Reassure casualty Cool affected area ● gently flowing cold water ● up to 20 minutes Cool for at least 10 minutes. Do not use ice water: "Cool the burn, warm the patient". Remove constrictions Swelling may develop as fluid loss occurs. Remove items such as rings and bracelets before they begin to cause discomfort or worse. Do not attempt to remove items that show signs of adhering to skin. Cover If possible use strips of clingfilm, laid the length of the limb rather than wrapped around it. DO NOT ● break blisters ● apply lotions, ointments etc ● use adhesive dressings Partial/full thickness Lay casualty down Cool affected area Remove constrictions and wet clothing Cover badly burned limbs Immobilise if other injuries require it. Treat for shock (and give O2) ● conscious – give sips of water ● unconscious – recovery position Evacuate to medical attention DO NOT ● break blisters 28 V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual ● ● ● Theory Lessons apply lotions, ointments etc use adhesive dressings remove dry clothing Chemical burns Follow instructions on container label ,if available, and give to ambulance crew Flood with water Rinse soda lime/caustic soda (used in rebreathers) with saline not water. ● ● 20 minutes minimum keep water away from healthy tissue Remove contaminated clothing ● gently ● avoid self/area contamination ● protection Use protective gloves etc, as necessary. Continue as for partial and full thickness burns Do not give liqids if chemical has been ingested, unless chemicals label OKs it. Evacuate to medical attention Hospital treatment if burn is....... Full thickness To face, hands, feet, genitals Right around a limb Partial thickness > 1% Superficial > 5% Mixed pattern of thickness Chemical Summary Classification Signs & symptoms First aid Needing hospital treatment V1.1 Copyright © BSAC 2009 29 Theory Lessons First Aid for Divers Instructor Manual iNJURIES TO MUSCLES, BONES AND JOINTS Lesson Objectives The lesson gives a description of the functions of the skeleton then briefly explains what sprains and strains are, and their treatment. It covers the cause, recognition and treatment of fractures and dislocation. To link to the later practical lesson, advice on the practicalities of administering first aid for these types of injury is included. Achievement Targets At the end of this lesson students should: ● have an appreciation of the function of the skeleton and its attachments ● know the signs and symptoms of a sprain or strain and the appropriate treatment ● know the signs and symptoms of a fracture or dislocation and the general rules for treatment Injuries to Muscles, Bones and Joints Contents Anatomy Sprains and strains Fractures and dislocations Bones and muscles Knowing a little about how the body is constructed, and the different types of tissue involved, helps the first aider understand the significance and implications of different types of injury. Skeleton The skeleton is the bony framework of the body, which supports and protects the soft tissues and organs. 30 ● bones There are over 200 bones in the adult human body. They are connected together at joints. The most common type of joint is called a synovial joint, where the bearing surfaces of each bone are lined with cartilage, and are separated by a lubricating fluid contained within the synovial capsule. A broken bone is called a fracture, and normally requires first aid. The bones in a joint can also be pulled out of alignment. This is called a dislocation, and requires first aid. ● ligaments Ligaments are strong bands of slightly elastic tissue which hold the bones in a joint together. They can be stretched, torn, or ruptured. When a ligament is damaged, the joint can become unstable. Ligament damage can occur with or without dislocation of the associated joint. First aid is required. V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual ● Theory Lessons support, protection, movement The skeleton supports the soft tissues, and protects vital organs such as the brain, spinal cord, heart, and lungs. The bones and joints form the levers and pivots necessary for movement. Muscles ● muscle Muscle is a type of tissue which contracts strongly when triggered by nerves. Skeletal muscle fibres are grouped into bundles which are contained within a sheath making up a named muscle. The diagram illustrates the biceps (contracted, wide) and triceps (extended, narrow) muscles in the upper arm. When the biceps contracts the lower arm is drawn upwards at 90 degrees to the upper arm, as shown in the diagram. If the biceps relaxes and the triceps contracts, the arm will return to the position where the upper and lower arms are in line. Muscles can be strained or torn, requiring first aid. ● tendons Tendons are inelastic cords of tissue which attach muscles to the bones on which they operate. Tendons can be damaged, or ruptured. ● movement, vital functions Muscles enable us to move our bodies. Generally body movements are voluntary: they take place as a result of conscious thought. Muscles also perform a variety of vital functions which occur automatically, such as the heart pumping, and digestive processes. Sprains & strains A strain is an injury to a muscle or tendon, and a sprain is an injury to the tissues around a joint. These injuries usually occur after a singe event, such as a twisted ankle, but they may also be caused by a series of lesser event events in which case the injury may not become apparent until several hours later. The signs and symptoms are described below. Sprain Sprains are caused when a joint is moved beyond its normal range, such as twisting an ankle or wrenching a knee. In diving, ankle injuries can easily occur when walking fully-kitted over uneven ground, because the boots on most suits make accurate foot placement difficult, and also give little or no ankle support. Sprains are also likely as a result of falls, particularly if kitted or carrying equipment because the fall will be heavier and more awkward. ● ● ● ● ● ● stretching or tearing tissues at a joint pain at joint swelling bruising and discolouration (later) pain on movement inability to move joint Strain Strains usually occur as a result of strenuous activity. An example in diving might be V1.1 Copyright © BSAC 2009 31 Theory Lessons First Aid for Divers Instructor Manual lifting heavy cylinders and dive bags. [The photograph on the VA shows a casualty with a torn hamstring, with the bruising illustrating the internal bleeding which can occur. The bruising might not become apparent until some time after the injury.] ● ● ● overstretching of a muscle sudden sharp pain at site of injury swelling in limb muscle Treatment Treatment follows the acronym RICE - Rest, Ice, Compression, Elevation. Rest - support in most comfortable position Rest prevents further injury, and relieves pain. Braces or splints can be used to give support when the casualty needs to continue using the injured area. Ice bag or cold water compress If applied soon after the injury, ice can prevent much of the swelling that would otherwise occur. Apply ice for about 20 minutes at a time. Compression with cotton wool and bandage A compression bandage provides some support, and may help reduce swelling. However it may also cause discomfort if it becomes too tight. Elevation of injured area Keeping the injured area as high as possible above the heart helps the body reabsorb fluid that is causing swelling. Evacuate to medical aid Minor sprains and strains will heal of their own accord, but ruptured tendons and ligaments may require surgical repair. If this is not performed immediately the results may not be as good, and the casualty may be left with a permanent disability. Fracture causes Explain what a fracture is and give an explanation of how damage can be caused by both direct and indirect force. The VA illustrates a fracture of the upper arm [humerus] being caused by direct force, and a broken collar bone [clavicle] caused by indirect force Break or crack in bone Direct force Indirect force Violent muscular contraction One source of such contractions is an electric shock. 32 V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Theory Lessons Fracture features Types Explain the two types of fracture. ● ● open closed The X-ray picture shows a fractured clavicle. Complications ● associated injuries Parts of the body adjacent to the fracture may have been damaged during the incident, by broken pieces of bone or by the force of the injury. These complications may be more serious than the fracture itself. ○ organs ○ blood vessels ○ tissues ○ nerves If a nerve is damaged, the body function it controls will be impaired. Damage to a sensory nerve could result in numbness in the affected area, while damage to a motor nerve could result in paralysis. ○ spine Damage to the spinal cord can cause serious and permanent paralysis, which means that it must be protected from further damage during first aid, especially if there are neck or spinal injuries. [The backbone protects the spinal cord. All nerves leave the brain via the spinal cord and then branch out at various points along the spine, depending on their function. For example, nerves controlling the arms branch out in the neck; nerves controlling the legs branch out of the lower spine.] ● missed injuries Warn against the often highly visible nature of fractures causing less obvious conditions to be missed. ● shock Shock will also be present, particularly with breaks of the major bones. Dislocation Displacement of one or more bones at a joint A dislocation is the displacement of a bone end that forms part of a joint eg, hip, ankle, shoulder, or elbow. The signs and symptoms are similar to those of a fracture, and the condition requires medical attention to reset the joint and deal with any collateral damage. Treat the same as a fracture There is no practical difference between a fracture and a dislocation for first aid purposes: the signs and symptoms of each are the same, as is the first aid treatment ● hard to distinguish anyway V1.1 Copyright © BSAC 2009 33 Theory Lessons ● First Aid for Divers Instructor Manual do not attempt to reset Signs & symptoms Sound - a 'crack' sound may be heard as the injury occurs. Visible bone ends Pain Deformity As well as the blow which caused the injury, muscles attached to the bones may contract (powerfully for strong muscles like the thigh), causing deformity. Crepitus - the grating sound made by ends of bone grinding together. Tenderness Swelling/bruising Loss of power Movement may be difficult or impossible. Shock Some of the signs and symptoms of shock may be present, depending on the severity of the fracture. Treatment To link to the later practical lesson, give advice on the general treatment for breaks and dislocations. Explain the importance of immobilising the injury by splinting and the special importance of immobilisation for spinal injuries, when and how to use gentle traction, how to dress open fractures and considerations during transport. Immobilise where lying - to avoid further damage, especially to blood vessels and nerves. If a fractured pelvis is suspected, discourage the casualty from urinating: emptying the bladder may cause it to tear, bringing a serious risk of infection. Steady limb until splinted - to avoid further damage, and reduce pain. Only move the limb if absolutely necessary eg, to put it into a position where it can be splinted. Support the limb on each side of the break. Beware of compromising blood vessels and nerves: do not attempt to reduce the fracture (realign the bones) or push back exposed portions of bone. Support in most comfortable position 34 V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Theory Lessons Dress open fracture before splinting Transport slowly and deliberately Someone must coordinate helpers' efforts to lift and transport the casualty. Don’t miss other less obvious conditions Reiterate the warning about the often highly visible nature of fractures causing less obvious conditions to be missed. Treat for shock Nil by mouth because the casualty may need a general anaesthetic in hospital. Evacuate to medical facility Practicalities Include advice on the practicalities of first aid, such as the length and rigidity of splints, how the casualty's own body can serve as a splint, use of padding, use of natural hollows to insert bindings, where to place knots, elevating the injury, and the effects of swelling on the tightness of bindings. Uninjured limbs make good splints Splints need length & rigidity Padding Natural hollows Knots away from injury - on the uninjured side of the limb, or over the splint. Don’t bind too tightly Raise injury if possible Elevation will help reduce bleeding and swelling. Summary Anatomy Sprains and strains Fractures and dislocations V1.1 Copyright © BSAC 2009 35 Theory Lessons First Aid for Divers Instructor Manual Other CONDITIONS Lesson Objectives This lesson covers the recognition and treatment of a number of conditions not covered elsewhere. They include miscellaneous non-DCI pressure injuries; the relatively common life-threatening illnesses stroke (referring to the national ActFAST campaign) and heart attack, together with serious head injury and blast injury; and various injuries arising from the diving environment - marine animal stings, seasickness, hypothermia, hyperthermia, and exhaustion Achievement Targets At the end of this lesson students should know the signs, symptoms and treatment for: ● mask, ear, sinus and dental barotrauma ● the life-threatening conditions severe head injury, stroke, heart attack, and blast injury ● stings from sea creatures ● seasickness ● hypothermia ● hyperthermia Other Conditions Contents Barotrauma The first part of this lesson covers minor barotrauma: mask, ear and sinus problems, and tooth cavities. For these topics draw on the knowledge that the students will already have acquired during their diver education. This part of the lesson should be very much a revision session concentrating on ensuring that the students can recognise the conditions and know what first aid actions to take. ● ● ● ● mask squeeze ear problems sinus problems teeth Life-threatening conditions These conditions are all life-threatening, and require immediate medical attention. Stroke and heart attack are included because, after cancer, they are the two most common causes of death in the UK, and the brain damage caused by strokes makes them the largest cause of adult disability. In most years, at least one person will suffer a stroke or heart attack whilst on a diving event in the UK. ● ● ● 36 severe head injury stroke heart attack V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual ● Theory Lessons blast injury Others The conditions in this group can be serious, but in the diving situation are normally fairly mild but common. ● ● ● ● stings from sea creatures seasickness hypothermia hyperthermia and exhaustion Mask squeeze Inadequate equalisation on descent ● bruised / swollen facial tissues ● bruised / haemorrhaged eyes ● self healing Treatment ● reassurance ● medical attention if painful ● refrain from diving until clear Ear problems Cover the various ways in which barotrauma to the ear can occur (taught in lesson OT3 of the BSAC Ocean Diver course). Burst eardrum is one of the most common non-DCI injuries in the BSAC Incident Reports. Structure Describe the structure of the ear, as it affects diving. Causes ● inadequate ear clearing on descent ● tight hood on descent ● blocked eustachian tube on ascent Signs and Symptoms ● pain ● dizziness/vertigo ● hearing disturbances ● deafness ● bleeding from ear Treatment ● cover ear and allow drainage V1.1 Copyright © BSAC 2009 37 Theory Lessons First Aid for Divers Instructor Manual ● refrain from diving Ensure that the dive manager is informed of any casualty who has reported ear problems. The casualty should not take part in further diving until the problem has cleared up. ● medical attention for deafness, or if unresolved If deafness or ringing in the ears occurs, the casualty should get medical attention straight away, because some ear injuries can be repaired if treated early, but if they are not permanent deafness can result. All casualties should be advised to consult a doctor if symptoms persist. Sinus problems Review sinus problems (taught in lesson OT3 of the BSAC Ocean Diver course). Structure Review what the sinuses are: cavities in the skull, connected to the nasal passages. Causes ● diving with a cold Mucus can block the passages which connect the sinuses to the nose. Before diving, this is only a problem in that it prevents the sinuses draining properly, it leads to the stuffed up feeling that comes with a cold, and it may be a source of infection. During a dive, if equalisation does not occur, the membranes lining the sinuses will swell towards the low pressure inside the blocked sinuses, and may rupture causing bleeding. Signs and symptoms ● blood in the mask ● sinus pain Treatment ● painkillers ● medical attention if severe Teeth This topic is mentioned in lesson OT3 of the BSAC Ocean Diver course. The diagram of a tooth should be used to cover the point that there are spaces inside the tooth which may be at a different pressure from the gas in the diver's mouth. Cavities through the enamel may arise through decay or faulty fillings. [It should not be necessary to refer to the detailed labelling on the diagram (unless some of the students are dentists).] Cause ● air pockets trapped behind fillings ● cavities with narrow openings Signs & symptoms ● pain during ascent / descent 38 V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual ● ● Theory Lessons dislodged fillings / split tooth bleeding from gums Treatment ● painkillers ● pad to prevent further damage ● refer to dentist Severe head injury A severe head injury, if not correctly treated, can cause serious damage to the brain and always requires urgent medical attention. Brain injuries can occur when the skull is accelerated or decelerated rapidly. This happens if the head is moving and strikes a fixed object, or if the head is struck by a fast moving object. In either case the brain may be damaged when it first strikes inside of the skull or when it rebounds, as illustrated by the diagram on the VA... Signs and symptoms – blow to head plus: The following signs and symptoms are indicative of a severe head injury if they follow a blow to the head. If not they may still indicate a serious condition such as stroke or DCI, but may sometimes be the result of a lesser condition. If in doubt get medical advice. ● headache worsens, or lasts over 6 hours A lasting headache which worsens, or is still present over six hours following the injury. ● extreme or persistent sleepiness Extreme difficulty in staying awake, or still being sleepy several hours after the injury. ● ● two or more bouts of vomiting ● ● ● ● ● ● ● ● ● ● ● unconsciousness, however brief Unconsciousness, either for a short or extended period of time. unequal pupil size straw coloured or blood stained fluid from nose or ears Straw coloured or blood stained fluid coming from the nose or ears. This is cerebrospinal fluid which normally surrounds the brain. severe dizziness or loss of balance confusion or strange behaviour problems with memory unable to use part of body eg, arm or leg Not being able to use part of the body, such as weakness in an arm or leg. difficulty seeing or double vision slurred speech unusual breathing patterns ringing or deafness in one or both ears seizure or fit Having a seizure or fit (when your body suddenly moves uncontrollably). V1.1 Copyright © BSAC 2009 39 Theory Lessons First Aid for Divers Instructor Manual Severe head injury Treatment ● immediate medical attention If any of these symptoms are present, particularly loss of consciousness (even for a short period of time), you should get the casualty to a medical facility. Access to medical imaging and specialist treatment may be needed. [The image on the VA is a head MRI, illustrating the point that the injury itself is invisible and needs highly specialised resources for diagnosis and treatment.] ● ● ● give oxygen (divers only) treat other injuries do not dive or drive Stroke ACT F.A.S.T. is a national government campaign introduced in 2009 aimed at helping people to recognise the signs of stroke, and act to save lives and reduce the damage caused. Most of the information in this section is taken from the campaign documentation. Disruption of blood supply to brain A stroke is a medical emergency where the blood supply to the brain is disrupted, usually by a blood clot or a burst blood vessel. When the blood supply is restricted or stopped, brain cells begin to die. This can lead to brain damage and possibly death. The signs and symptoms of a stroke vary from person to person, but they usually begin suddenly. As different parts of the brain control different parts of the body, symptoms will depend upon the part of the brain that has been affected and the extent of the damage. The main stroke symptoms and first aid action can be remembered with the word FAST: Face-Arms-Speech-Time. Symptoms in the FAST test identify about nine out of 10 strokes. ● Face The face may have fallen on one side, the person may not be able to smile, or their mouth or eye may have drooped. ● Arms The person with suspected stroke may not be able to raise both arms and keep them there, because of arm weakness or numbness. ● Speech There may be slurred speech. ● Time It is time to dial 999 [or issue a distress call on VHF] immediately if you see any of these signs or symptoms. Other signs and symptoms Severe head injuries, and some forms of DCI, may produce similar symptoms. ● ● ● 40 dizziness communication problems problems with balance and coordination V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual ● ● ● ● Theory Lessons difficulty swallowing severe headaches numbness/weakness/paralysis of one side of body loss of consciousness (in severe cases) There is a related condition known as a transient ischaemic attack (TIA), where the blood supply to the brain is temporarily interrupted. The symptoms of a TIA are the same as for a stroke, but they only last from between a few minutes to a few hours, then completely disappear. TIAs should be treated very seriously as they are often a warning sign that a full stroke is coming. There is about a one in five chance that those who have a TIA will experience a full stroke during the four weeks following it. Immediate medical attention Prompt treatment is essential because the sooner a person receives treatment for a stroke, the less damage is likely to happen. Even if the symptoms of a stroke disappear casualties should still go to hospital for an assessment because there is a risk that they may have had a TIA and be about to have a full stroke. Heart attack Most heart attacks can be successfully treated if immediate medical help is provided. The sooner the treatment, the more effective it will be, and the greater the chance of survival. Disruption of blood supply to heart ● chest pain This may vary from a crushing central chest pain to mild chest discomfort. The pain often starts in the chest and then travels to the neck, jaw, ears, arms and wrists. Sometimes, it travels between the shoulder blades, back, or to the abdomen. It can last from five minutes to several hours. Moving around, changing position, or resting, will not stop, or ease, the pain. The pain may be constant, or it may come and go, and feel like pressure, squeezing, or fullness. ● ● ● ● ● ● ● shortness of breath clammy, sweaty, and grey complexion dizziness nausea and vomiting restlessness coughing general feeling of being unwell Treatment ● 300mg aspirin If you are having a heart attack, you will normally be given a one-off 300mg dose of aspirin. This helps to prevent the blood clot in your coronary artery from getting bigger. Ideally, it should be chewed, or taken dissolved in water, to ensure that it gets into your bloodstream as quickly as possible. Check if the casualty is taking heart tablets (such as nitrates), and if so help the casualty take them as prescribed. ● immediate medical attention V1.1 Copyright © BSAC 2009 41 Theory Lessons ● ● ● ● First Aid for Divers Instructor Manual lay down, TLC give oxygen (divers only) BLS if necessary AED if necessary and available An AED can reset a heart which is not beating properly, which is often the case with heart attacks and serious diving injuries. The BSAC Automatic External Defibrillator course provides the training needed to use this valuable type of lifesaving equipment. Blast injury Blast injuries will be a new topic to most students. In the sport diving field the most likely situation will be a blast injury sustained in air - from, say, a diving cylinder exploding while being charged. Casualties from such an explosion would have very dramatic injuries. Casualties from underwater explosions may, however, have no visible injury despite profound internal damage. Underwater explosions are unlikely in sport diving and consequently the majority of the time spent on blast injuries should cover the case in air. Explain the characteristics of blast injuries, covering both visible and potential internal damage. Much of the spectrum of injury sustained in a blast incident (wounds, bone damage, shock) is covered in the earlier lessons and this should be referred to by extracting the appropriate information from the students. Causes ● exploding cylinder ● burst flailing hose ● explosives Injuries due to ● overpressure ○ bruising ○ tissue separation ○ soft tissue damage ○ limb damage / amputation ● shrapnel ○ high energy particles ○ multiple wounds ○ ‘gunshot’ wounds Blast injury Blast injuries can be devastating. The picture in the VA shows a right hand damaged by explosives. Treatment ● ABC Blast injuries are often life-threatening. Deal with the priorities of Airway Breathing Compressions first. 42 V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual ● ● ● ● ● Theory Lessons counter bleeding treat fractures make casualty comfortable treat for shock arrange urgent evacuation Stings from sea creatures Hazards In the UK, there are very few types of venomous creature. The main hazards for divers are some types of jellyfish (Lion's mane jellyfish cyanea capillata, pictured top, and cyanea lamarckii, pictured bottom). Their stings can be painful but are not lethal. Overseas, especially in tropical waters, there are more types of venomous creature, and some of them can inflict serious or even lethal stings. Hazards include fish (eg, lionfish, stonefish, scorpion fish), medusa (eg, box jellyfish), molluscs (eg, cone shells, blue-ringed octopus), and sea snakes. There may be specific treatments for the local venomous creatures, so do some research if you are to be the first aider on an overseas diving expedition, unless there will be a competent local first aider on hand. The advice in this section is aimed at the UK situation, although the general approach is applicable anywhere. ● UK rarely serious Signs & symptoms ● contact with animal ● pain ● rash and/or swelling ● shock Treatment ● remove jellyfish stings Jellyfish tentacles contain large numbers of stinging cells, which will continue to fire long after the tentacles have broken up. First aid involves removing the stinging cells from the skin without causing more of them to fire, and without first aiders getting stung themselves. ○ do not touch Wear gloves or use a stick. Remember that the cells left on whatever protection you use will still sting, so do not, for example, touch exposed parts of your body with a gloved hand. ○ do not use fresh water Fresh water may cause stinging cells to fire. ● ● treat symptoms get medical help if serious V1.1 Copyright © BSAC 2009 43 Theory Lessons First Aid for Divers Instructor Manual Seasickness Sea sickness is a common ailment that can have serious consequences when diving. Explain its causes, what steps can be taken to prevent or minimise it, types of anti-sea sickness pills and their implications, the treatment of sea sickness and the potential implications of attempting to dive while sea sick. Cause The principal cause of motion sickness is believed to be the brain receiving conflicting inputs from different sensory systems: the balance mechanism detects that everything is moving, but the eyes show that objects are stationary relative to one another. ● ● motion affects balance mechanism people differ in susceptibility Prevention / minimisation ● healthy eating and drinking Hangovers, meals lying heavy on the stomach etc, predispose to seasickness. ● watch horizon, minimise motion Looking at the horizon helps prevent motion sickness because the eyes than see objects on the boat in motion relative to the horizon. Similarly, trying to read, or similar tasks such as assembling diving equipment, makes things worse because the eyes see no relative motion at all. Being at the centre of the boat lengthways and widthways minimises the amount of pitching and rolling that is felt. ● ● comfortable clothing proprietary remedies There are several types of over-the-counter medicine available, as well as some herbal remedies (the main ingredient is usually ginger) and a variety of wristbands and bracelets. There is very little scientific evidence that these remedies are effective, except for the medicines, which carry risks for divers. The advice from the UK Sport Diving Medical Committee on sea sickness medication is as follows. "The problem with sea-sickness medication is that some of these tablets may make you drowsy and may therefore predispose you to nitrogen narcosis. It is strongly advisable to find the medication which best suits your body. First, you should purchase a type recommended by your local pharmacist (eg, Stugeron), and take a test dose at a time when you are not driving or diving. If you become drowsy, you will know the medication does not suit you, and you must then try another type. This procedure should be repeated until you find one which does not make you drowsy. It is important to note that the one which suits you best may not suit your buddy at all. This is nothing to worry about and is due to differing body metabolism. Your initial dives on this medication should be shallow and depth should be gradually increased over subsequent dives in order to minimise the possibility of adverse effects on a deep dive. Beware of the possible additive effects of this medication with prolonged use. If any drowsiness is experienced, you should not take a dose on that day. At the start of a new diving season, prior to diving, it is advisable to retest yourself in this way to ensure that your chosen medication still suits you. UKSDMC May 1996" Signs & symptoms 44 V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Theory Lessons ● nausea, vomiting, pallor, headache Prolonged vomiting may lead to dehydration, which is a predisposing factor for DCI. ● inability to perform tasks Seasickness casualties should not dive or act in any dive management role if their ability to function properly is affected. Treatment ● lay / sit down, keep warm ● secure to prevent falling (overboard) ● remove to more stable environment Hypothermia While the incidence of hypothermia has become less with the widespread use of drysuits, cases still appear in the BSAC Incident Report every year. Explain what it is, how it can come about (out of the water as well as in), how to recognise it and what to do about it. Body temperature <35°C Causes ● inadequate thermal protection ● water conducts heat 25 times faster than air ● wind chill/evaporation Signs and symptoms ● 35-37°C cold, lethargic, pale skin ● 33-35°C slurred speech ● 32°C intense shivering, low comprehension, irrational ● 30°C shivering stops, lack of coordination, slow pulse and breathing ● 27°C unconscious ● 24°C death Hypothermia Treatment ● insulate, lay down, keep quiet ● hands and arms not touching trunk ● warm sheltered environment ● replace or cover wet clothing ● hot sweet drinks ● recovery position if unconscious, BLS if necessary ● evacuate to medical attention V1.1 Copyright © BSAC 2009 45 Theory Lessons First Aid for Divers Instructor Manual Do not The following will cause more blood to flow near the surface of the body, losing heat. ● ● ● give alcohol rub or massage limbs allow casualty to exercise In extremis Only attempt this if there is a long delay before medical help arrives. ● ● gentle heat to trunk only rewarm at original cooling rate Hyperthermia Hyperthermia in the form of heat exhaustion (body temperature 37-40°C) is more of a problem for drysuit wearers. It is no longer just a problem in warmer climates. Explain how it can come about (not just by hot weather but also exercise), its recognition and treatment. [Heat stroke (body temperature >40°C, and a life-threatening condition) in unlikely in the UK and should only be included when courses are run in those areas of the world which experience very hot climates.] Causes ● exercise in heat and/or excessive clothing ● loss of salt through sweating and/or D & V D&V is diarrhea and vomiting. Signs and symptoms ● casualty exhausted and restless ● headache, dizziness, nausea ● cramps in lower limbs ● pale, clammy skin, normal or falling temperature ● fast shallow breaths, weak rapid pulse Treatment ● lay down in cool place ● water or rehydration drink Give plenty to drink. This should either be water, or a rehydration drink such as a sports drink. You can make a rehydration drink by adding one level teaspoon of salt to a litre of water, plus sugar and/or flavouring to taste. Avoid alcohol or caffeine as they can increase levels of dehydration. ● ● 46 recovery position if unconscious evacuate to medical facility V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Theory Lessons Exhaustion Causes ● overexertion ● aggravated by heat, cold, depth, illness Signs and symptoms ● deep laboured breathing ● headache and confusion ● unable to respond to mental and physical demands Exhaustion is a more profound condition than just 'needing a rest'. Most divers might need a breather after a bout of strenuous effort, but will be able to think and move while recovering, even if temporarily unable to continue at their original pace. An exhausted diver will be helpless, unable to move or think in any effective manner. Treatment ● stop activity ● lay down and keep quiet ● Exhaustion = common sign of DCI Summary Mask squeeze Ear problems Sinus problems Teeth Severe head injury Stroke Heart attack Blast injury Stings from sea creatures Seasickness Hypothermia Hyperthermia Exhaustion V1.1 Copyright © BSAC 2009 47 Theory Lessons First Aid for Divers Instructor Manual OPEN FORUM AND COURSE DEBRIEF Lesson Objectives In this brief lesson the key points which the students should take away with them are summarised, course documentation is handed out, and students are given a final opportunity to ask questions. Achievement Targets At the end of this lesson students should: ● be able to set the specific skills learnt on the course into the context of the basic principles of first aid ● understand how FAD fits into the suite of BSAC rescue skills courses ● appreciate the benefits of attending further rescue skills SDCs ● have had an opportunity to ask any remaining questions Open Forum and Course Debrief If the logistics for the course are such that it is more convenient to do so, the contents of this session should be delivered informally 'in the car park' as the final debrief at the end of the course. Summary Summarise by reiterating the objectives of first aid and that they should aim to do the minimum necessary to achieve those objectives. Preserve life Limit the effects Promote recovery Do the MINIMUM necessary Conclusion Round the session off by putting the course in its proper context as one of an integrated suite of rescue skills courses. Encourage students to participate in all the others so that the knowledge and skills they gain will enable them to contribute more effectively across the wider spectrum of diving safety. Attending an SDC will give them a fun day out; lots of practice, under the guidance of experienced instructors; several Dive Leader lessons signed off in a single day if they are learning rescue skills for the first time; and a quick and easy way to "practise practise practise" and stop the rescue skills they already have getting rusty. Other BSAC rescue courses ● Dive Leader The BSAC Dive Leader course includes all of the content of the OAA and PRM 48 V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Theory Lessons SDCs. Sports Divers who complete the SDCs get signed up for the corresponding parts of the Dive Leader course. ○ Oxygen Administration OAA teaches the administration of oxygen as a means of increasing the effectiveness of first aid treatment of diving accidents. It includes Basic Life Support and deals with diving-specific injuries such as DCI. ○ Practical Rescue Management PRM teaches divers how to manage the resources at their disposal in order to make the most effective use of them in a rescue situation. Mention that, for those who wish to further their knowledge of first aid, a variety of longer courses from 3 days upwards is available from organisations such as the Red Cross. ● AED Workshop AED trains divers and others involved in BSAC diving activities, in the use of Automated External Defibrillators (AED) during a diving emergency situation, with particular attention to precautions required in the diving environment. ● Lifesaver and Advanced Lifesaver These awards test the personal rescue skills taught in the BSAC Diver Training Programme. The Lifesaver Award examines lifesaving proficiency specifically applicable to divers under pool or sheltered water conditions. A secondary aim is to examine the ability of divers to make use of their rescue skills in more general non-diving situations. The Advanced Lifesaver Award examines lifesaving proficiency specifically applicable to divers in realistic open water conditions, and also covers first aid for injuries likely to be encountered in diving and diving-related activities. Course documentation Hand out Student Packs and any other material, as necessary Open forum Use the open forum session to deal with any questions which have not already been answered and to tie together any loose ends. V1.1 Copyright © BSAC 2009 49 Practical Lessons First Aid for Divers Instructor Manual CASUALTY EXAMINATION Lesson Objectives A prompt and accurate evaluation of the casualty's injuries, allowing the correct first aid treatment to be rapidly applied, could be the difference between life and death. This lesson deals with the evaluation of non-diving conditions. Casualty evaluation for a diving incident is covered in lesson DT4 of the BSAC Dive Leader course, and in the Oxygen Administration Award, where the appropriate conditions are addressed. The lesson follows the head-to-toe method of casualty assessment using the check list included in the Student Notes. Achievement Targets At the end of this lesson students should: ● be able to conduct a casualty examination using the head-to-toe method ● be able to find a pulse quickly and reliably ● have used the FAD Casualty Assessment Checklist Equipment Needed When examining the eyes, small torches will be required to demonstrate the response of the pupil to light. To avoid eye damage, they should not be too bright. A supply of FAD Casualty assessment checklists, sufficient for each student Lesson Contents 1. Physical examination Explain the method used for the examination, introduce the checklist, and cover the recording of incident details (history), responsiveness (include a link to the AVPU classification taught in Dive Leader, PRM, and OAA), and symptoms reported by the casualty. Remind students that symptoms can only be reported by the casualty, while signs are detected by the first aider (and maybe the casualty as well). If necessary, point out that the FAD Casualty Assessment Checklist covers a different range of conditions from the BSAC Casualty Assessment /Incident Procedure form, and the two are not interchangeable. ● Method: head-to-toe, minimal movement of casualty, compare both sides of the casualty's body. ● History: description of incident ● Responsiveness: sight, speech ● Symptoms: information from the casualty 2. Assess and record Follow the head-to-toe method of casualty assessment using the check list included in the Student Notes, and Appendix B. When checking for subtle changes in response or appearance during a casualty examination, it is important that the students know what the normal response or appearance is like. Each type of examination should be demonstrated and then student pairs should perform them on each other. ● Head o skull: swelling, indentation o face: colour, skin, temperature, breathing 50 V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Practical Lessons o eyes: pupil size, response to light o ears: hearing, blood, fluid o nose: appearance, blood, fluid o mouth: breathing, odour, wounds, irregularity, discolouration ● Neck: loosen clothing, warning medallions, vertebrae, tenderness, bruising ● Trunk: chest movement, symmetrical collar bones and ribs, wounds, tenderness, incontinence ● Back and spine: vertebrae, swelling, tenderness ● Upper limbs: check movement, bruising, swelling, deformity, warning bracelet, feeling ● Lower limbs: check movement, bruising, swelling, deformity, feeling ● Feet: movement, feeling, colour, deformity 3. Pulse Demonstrate the method of taking a pulse, at various points on the body, including the carotid pulse. Observe the students measuring their partners' pulses (preferably carotid), and check the results. Get them to repeat the exercise if not satisfactory. 4. Monitoring The initial condition is not always the whole story and consequently the casualty's condition should be continuously monitored as subsequent changes in condition may give vital information to medical personnel. Explain this to the students, and point out that the form in the Student Notes has space to do this. Skills Performance Standards At the end of this lesson, students should be sufficiently competent to achieve the following skill performance standards without supervision: Assess and record - carry out accurate assessment of each element (head to feet) of a casualty examination with minimal movement of the casualty, and record the information legibly. Pulse - quickly and reliably find their partner’s pulse (preferably the carotid). V1.1 Copyright © BSAC 2009 51 Practical Lessons First Aid for Divers Instructor Manual BANDAGING Lesson Objectives This is a highly practical lesson which is intended to give each student hands-on practice at dealing with a variety of scenarios in which a wound needs bandaging. The lesson format consists of an instructor demonstration of all the aspects covered, followed by student practice in pairs. Achievement Targets At the end of this lesson students should: ● be confident and competent in their ability to deal with any type of wound using whatever materials are to hand ● understand what to do when a dressing fails to control bleeding ● be able to elevate and/or immobilise the site of an injury ● know how to apply bandages which do not restrict circulation. Equipment Needed A selection of bandages and dressings as might be found in a first aid kit, and other items suitable for improvisation. Lesson Contents 1. Demonstration Give a demonstration of all the bandaging techniques to be covered in the session (to a certain extent, this will depend on the scenarios which have been chosen). Bandaging demonstrations should cover not just control of bleeding but also immobilisation of the affected area (eg, pad gripped in palm, glove with fingers folded over secured over balled fist, arm in sling) and how to cope with embedded foreign objects. Bandages which fail to control bleeding should never be removed: place additional bandages on top. Stress improvisation using any materials available - infection is of secondary importance to controlling life threatening bleeding. 2. Bandaging scenarios Get the students to deal with a number of wound scenarios, working in pairs. The practical exercises should include the use of normal and improvised dressings/bandages. Suitable scenarios for practice are: ● badly gashed palm of the hand ● lacerated wound of the lower leg ● wound at a site of changing body contour (eg, elbow, knee or ankle) ● puncture wound of the abdomen ● scalp wound (using a triangular bandage or improvised triangular bandage) ● wound of the lower arm with an embedded foreign object ● wound where the initial bandaging fails to stem the bleeding (this scenario must be included) ● additional or different scenarios may be introduced at the instructor's discretion. During the student practice ensure that bandages are not applied too tightly. 52 V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Practical Lessons Ensure that where bandages are applied it is always possible to check the circulation at limb extremities beyond the bandage. Where appropriate ensure that suitable techniques are employed to elevate the site of the injury. Skills Performance Standards At the end of this lesson, students should be sufficiently competent to achieve the following skill performance standards without supervision: Bandaging – confident and competent to bandage the types of wound likely to be encountered in diving situations. V1.1 Copyright © BSAC 2009 53 Practical Lessons First Aid for Divers Instructor Manual DRESSINGS, SPLINTING AND MOVING CASUALTIES Lesson Objectives This session should build on the advice on the given in previous lessons regarding the nature and treatment of the various conditions, by practical demonstrations and student exercises, where each student gets hands-on practice at dealing with a variety of injuries of a type likely to be encountered in diving situations. The emphasis should be on improvisation using the various items of diving equipment. The instructor gives a demonstration of methods for moving a casualty. For convenience the lesson may be split into two sessions separated by a short break for refreshments, for which additional time should be allowed. Achievement Targets At the end of this lesson students should: ● be confident and competent to deal with the types of injury likely to be encountered in diving situations Equipment Needed A selection of items as might be found in a first aid kit, and other items likely to be present at a dive site, suitable for improvisation. Lesson Contents 1. Moving the casualty Appropriate 'casualties' should be used to demonstrate moving the casualty, using such methods as a blanket lift. Involve as many of the class in the demonstrations as possible 5. Dressing and splinting The students should work in their pairs with each pair being given a different injury to treat, one of the group acting as the casualty and the other as the first aider. The emphasis should be on improvisation using the various items of diving equipment. Suitable injuries include: ● broken collar bone ● break of the lower arm ● elbow injury resulting in flexed arm with fixity of movement ● broken femur ● crushed hand ● open break in the lower leg ● broken ankle ● broken ribs ● broken pelvis Once the 'casualty' is suitably attended to, the 'first aider' of each pair should then explain to the whole class what has been done and why. Draw out some of the hazards that have to be dealt with for particular injuries egs, torn femoral artery with broken femur, punctured lung with displaced fracture of the ribs, 54 V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Practical Lessons etc. 'Casualty' and 'first aider' should then swap roles and be given a completely different type of injury to treat. This swapping of roles and expansion of the spectrum of injuries attended to should then continue for as long as time allows Skills Performance Standards At the end of this lesson, students should be sufficiently competent to achieve the following skill performance standards without supervision: Dressing and splinting – confident and competent to deal with the types of injury likely to be encountered in diving situations. V1.1 Copyright © BSAC 2009 55 Appendices First Aid for Divers Instructor Manual Appendix A Incident statistics The following charts are based on analysis of all incidents reported under the category "Injury/illness" in the BSAC Diving Incidents Reports for the years 2000, 2005 and 2008. "Injury/illness" includes almost all reported incidents involving the type of injury covered in FAD. It excludes underwater injuries such as DCI, drowning and gas toxicity. There were 81 "Injury/illness" incidents, just over 6% of the total of all types of incident. The charts indicate the relative frequency of different types of accident and of different types of injury. It is likely that the actual frequency of injuries requiring first aid is somewhat higher than the number of reported incidents suggests: some others of similar severity, and many minor injuries, will have occurred and gone unreported. Injury types Incident types w ound 14% diving (not DCI) 20% other 27% chest pain/heart attack 9% concussion 10% other 20% trailer 7% propeller 4% illness 14% 56 eardrum 19% fall 17% heat/cold 11% hypothermia 9% fracture/sprain/strain 13% exhaustion/hyperthermia 6% V1.1 Copyright © BSAC 2009 First Aid for Divers Instructor Manual Appendices Appendix B FAD Casualty Assessment Checklist Casualty name Date Time History - description of incident Responsiveness sight, speech Symptoms - information from casualty Head Skull – swelling, indentation; Face – colour, skin, temperature, breathing; Eyes – pupil size, response to light Ears – hearing, blood, fluid; nose – appearance, blood, fluid; Mouth – breathing, odour, wounds, irregularity, discolouration Neck – loosen clothing, warning medallions, vertebrae, tenderness, bruising Trunk – chest movement, symmetrical collar bones and ribs, wounds, tenderness, incontinence Back & spine – vertebrae, swelling, tenderness Upper limbs – check movement, bruising, swelling, deformity, warning bracelet, feeling Lower limbs - check movement, bruising, swelling, deformity, feeling Feet - movement, feeling, colour, deformity Changes - record time & change FAD Casualty assessment checklist V1.1 Copyright © BSAC 2009 Copyright BSAC v1 8/2009 57