OBJECTIVES 1. Demonstrate proper use and care of eye protection. 2. Describe hard hat protection and proper maintenance of your hard hat suspensions. 3. Identify proper work gloves and foot protection for work on a given job site. 4. Breathing and hearing protection applications. 5. Describe proper preparation of a safe job site. 6. Perform advanced planning for the event of an emergency. 7. Identify proper work habits used with ladders and scaffolding. 8. Explain how to use and maintain hand tools and power tools. 9. Explain how to lift and handle materials correctly. 10. List low-voltage wiring installation and handling practices. 11. Describe how to correctly respond in an emergency situation. 12. Display proper first aid hygiene. 13. Demonstrate proper treatment using basic first aid practices. 14. Describe the proper application of various CPR methods. 15. Explain how to treat electrical shock. IMPORTANT! The information provided in the “Cable Installation Safety” chapter is provided as an overview of key workplace safety issues, and is NOT a substitute for professional safety training. Figure 1-1: Safety Glasses with Side Shields Figure 1-2: Hard Hats The suspension system in the hard hat normally consists of a network of bands designed to: Fit the hard hat to different sized heads Absorb the impact from an object impacting the shell of the hard hat Figure 1-3: Hard Hat Suspensions Replace your hard hat when: Cracks appear in the shell Its shiny surface appears dull or chalky The shell becomes brittle Replace your suspension when: The suspension becomes brittle One or more of the mounts break off The suspension no longer holds securely to the head Cradling straps break or become worn Figure 1-4: Synthetic Gloves Examples of synthetic gloves include: Neoprene - a synthetic rubber characterized by superior resistance to liquids such as water or oils. Nitrile - provides excellent abrasion resistance. PVC (polyvinyl chloride) - liquid and solvent protection; PVC dipped gloves are used in electrical installations. Rubber - provides gripping power as well as cut and puncture resistance. Vinyl - a breathable substance that allows easy gripping and minimizes the absorption of water, oil, or grease. Examples of synthetic gloves include: (continued) Latex - a natural rubber created from a white fluid produced by the cells of various seed plants. It is the most elastic natural substance known. Latex provides some resistance to liquids such as water or oils. Disposable Latex - manufactured in medical and industrial grades, they allow the user better dexterity while having elasticity. They provide protection from bodily fluids. Examples of synthetic gloves include: (continued) Disposable Vinyl - medical/industrial grade, durability, softness, no latex allergens. Disposable Polyethylene - 1.25-ml thickness, promotes good hygiene, and is often used for the distribution of food products. Figure 1-5: Cotton Gloves Examples of cotton gloves include: Inspectors - cotton or nylon, reversible, may be used as gloves or glove liners. Canvas - 8-oz, 10-oz, or 12-oz fabric for generalpurpose work. May also have PVC dots for gripping ability and longer wear. Jersey - 9-oz jersey for general-purpose work. May also have PVC dots for better gripping ability and longer wear. Terry Cloth - seamless knit styles in various weights for specific degrees of heat protection. Examples of cotton gloves include: (continued) Chore - quilted for heavy work, plus heat protection, and for general-purpose work. Double Palm - quilted for heavy work, minimal heat protection. Hot Mill - quilted for heavy work, moderate heat protection. Figure 1-6: Strings Strings are designed for general-purpose work applications and for cut and abrasion resistance using high-performance yarns. Various weights, where needed, provide longer durability or additional dexterity. Multi-purpose yarns - 100% cotton, cotton/polyester, 100% synthetic, PVC coating (provides better grip and longer wear). High-performance yarns - Kevlar knits, stainless steel (Steelcore, Steelcore II, Spectra Fiber), Survivor. Figure 1-7: Leather Gloves The main types of leather are: Cow - the most commonly used leather within the glove industry due to its plentiful availability. The United States and Australia produce the majority of these hides. The advantages include comfort, durability, excellent abrasion resistance, and breathability. Chrome tanning of this leather provides greater wear and heat resistance. Pig - affords the greatest breathability due to the porous texture of this hide. Additionally, pigskin tends to become softer with use and withstands moisture without stiffening. When laundered, this leather will return more readily to its natural soft texture than other leathers. The main types of leather are: (continued) Goat - independent tests have proven it to be a stronger and more durable type of leather. The natural lanolin produced by goats helps create the softest, most abrasion-resistant leather. This leather is highly recommended for applications requiring tactile sensitivity. Figure 1-8: Boots Figure 1-9: Respirators Figure 1-10: Noise Exposure Figure 1-11: Hearing Protection Disposable earplug fitting instructions: 1 Hold the earplug between your thumb and forefinger. 2 Roll and compress the entire earplug to a small, crease-free cylinder. 3 While still rolling the earplug, use your other hand to reach over your head and pull up and back on your outer ear. This straightens the ear canal, making way for a snug fit. 4 Insert the earplug and hold for 20 to 30 seconds. This allows the earplug to expand and fill your ear canal. Reusable ear plug fitting instructions: 1 Hold the stem end of the earplug and insert it well inside your ear canal until you feel it sealing and the fit is comfortable. 2 Reach over your head and pull up and back on your outer ear; this straightens the ear canal, making way for a snug fit. 3 Insert the earplug into your ear canal. Figure 1-12: Ergonomic Safety Devices Knowing and understanding your working environment (and the potential hazards that may arise) is an important part of any safety program. For example: Always read any safety warnings that deal with your equipment. Attend any safety training courses such as basic first aid and cardiopulmonary resuscitation (CPR), both offered by the American Red Cross. Implement a notification plan to inform everyone around your work area of potential hazards. Make sure you consider coworkers, building employees, or other construction workers. Figure 1-13: Warning Signs Figure 1-13: Warning Signs (continued) Figure 1-14: Ladders Key tips for proper ladder safety include: 1 Before using a ladder, inspect it for the following conditions: Ladders SHOULD: Be free from oil, grease, or similar materials Have rounded corners to prevent the snagging of clothing Be properly rated for weight capacity Have nonconductive side rails when used around energized circuits Ladders should NOT: Be painted with any type of opaque substance that may obstruct inspection for cracks or defects Have any missing steps or supports Key tips for proper ladder safety include: (continued) 2 Basic safety tips for using a stepladder include the following: Always move the ladder in the closed position. Use the ladder only on a level surface. Open the ladder fully with the retaining arms extended and locked in place. Always face the ladder when climbing the steps. Only one person should be on a ladder at any time. Key tips for proper ladder safety include: (continued) 2 Basic safety tips for using a stepladder include the following: (continued) Do not stand above the safe working height of the ladder. Do not use a ladder if the side rails are broken, cracked, or damaged in any way. Do not use a ladder as a support for staging or to support cable reels. Never leave tools or stock on stairs or rungs. Key tips for proper ladder safety include: (continued) 3 When using an extension ladder, the following safety rules apply: All entrance and exit areas to and from the ladder should be clear of tools, materials, and other obstructions that may contribute to someone falling. Do not use an extension ladder on any surface that does not equally support the side rails. The extension ladders should have non-slip footing to prevent kick out. Key tips for proper ladder safety include: (continued) 3 When using an extension ladder, the following safety rules apply: Tie off the extension rope to the bottom section when the ladder is extended. The top of the ladder should extend 36 inches above the working surface. The rail section should overlap a minimum of three rungs when extended. Key tips for proper ladder safety include: (continued) 4 The OSHA regulations also require an employer to provide training to employees in the following areas with respect to ladder safety: Identifying potential fall hazards Proper procedures for use and maintenance of fall protection Proper inspection, use, and placement of ladders Load-carrying capacity of ladders Figure 1-15: Scaffolding To prevent accidents associated with scaffolding, a number of safety precautions should be taken during its construction and use: Avoid the use of makeshift platforms. Plan each job carefully to ensure that scaffolding is used only when required, and that the scaffolding conforms to all applicable construction and safety regulations. Scaffolds should be designed, built, and inspected by trained and experienced workers. Place base plates, sills, or footers on solid ground; make sure the scaffold is leveled or plumbed. To prevent accidents associated with scaffolding, a number of safety precautions should be taken during its construction and use: (continued) Do not use damaged end frames or braces. Make sure to attach braces at all points provided; do not shortchange bracing. Use only scaffold-grade wood or metal catwalks for platforms. Before each job, inspect each scaffold platform thoroughly for breaks, knots, cracks, or warping. Planks should have cleats permanently attached to keep the planks from sliding off the scaffolding. To prevent accidents associated with scaffolding, a number of safety precautions should be taken during its construction and use: (continued) Use guardrails and toe boards on platforms higher than 6 feet. Inspect the scaffold after it is erected and each day during its use on the site. Rope off the area underneath the scaffold. Use a ladder when mounting the scaffold; do not climb the braces. To prevent accidents associated with scaffolding, a number of safety precautions should be taken during its construction and use: (continued) Avoid an off-balance position when pulling, pushing, or prying, especially when working at heights. Rolling scaffold units should be no higher than four times their narrowest base measurement. Always keep the casters of rolling scaffolding locked when it is not being moved; never ride on rolling scaffolds. The following steps should be taken to ensure protection from falls: Determine the proper equipment; ask yourself if the task would be safer to perform from a lift, staging, or ladder. Ensure that the working area and walkways are free of debris. Ensure that anchorage points are properly rated, if a personal fall-protection system is used. Inspect any fall-protection devices, such as safety belts or harnesses, before using them. If any component is damaged, remove it immediately from service. The following steps should be taken to ensure protection from falls: (continued) Verify that all guardrail systems are properly installed and include toe boards and a midrail. If a guardrail must be removed temporarily to facilitate your job, replace it as soon as possible. If aerial lifts are used on the job site, have all personnel certified in their use. Make sure that all through-floor openings are covered and marked with an appropriate warning. Ensure that all employees are trained to recognize potential fall hazards and how to select and use fall-protection devices. Figure 1-16: Fall-Protection Devices The following checklist provides some basic guidelines for the proper use of hand tools: Know the precise purpose for each tool in your toolbox, and use them only for the specific task they werrre designed to do. Never use any hand tool or power tool unless you are trained to do so. Inspect tools before each use; replace or repair tools if worn or damaged. Clean tools after every use and keep cutting edges sharp. Never test a cutting edge with your fingers; instead test it on scrap material. The following checklist provides some basic guidelines for the proper use of hand tools: (continued) Select the right size tool for the job; don't use cheaters (i.e., do not use a circular saw to cut a small piece of wood). A cheater is a tool that will do the job, but is the wrong tool for the job to be performed. When working on ladders or scaffolding, be sure that you and your tools are secure. (A falling tool can seriously injure a coworker or bystander.) The following checklist provides some basic guidelines for the proper use of hand tools: (continued) Carry tools correctly; never place sharp or pointed tools in your pockets. When carrying tools by hand, point cutting edges away from you and toward the ground. Lightly oil metal tools and store them in a clean, dry place to prevent rust. Wear personal protective equipment (PPE), such as safety goggles, face shields, gloves, etc., as required. Figure 1-17: Lifting Techniques The following proper lifting and moving guidelines can help you avoid such injuries: Before lifting, evaluate the size of the load and get help if it is too large for one person. Bring the object close to you, centering the weight over your feet. Lift smoothly and avoid quick, jerky motions. When carrying a heavy load, shift your feet instead of twisting your body. When lifting a load above waist height, rest it on a table or bench, shift your grip, and then lift again. The following proper lifting and moving guidelines can help you avoid such injuries: (continued) When carrying a heavy load, use two people if necessary; plan in advance the route along which the load will be removed. Do not let the object you are moving obstruct your vision; always have a clear view of where you are going. Scout your route by making sure the surface you will be traveling on is clean and in good condition; make sure to avoid steep ramps. The following proper lifting and moving guidelines can avoid such injuries: (continued) Carry conduit and other long objects on your shoulder. Push or pull at waist height; avoid bending and twisting when pushing or pulling. Whenever possible, you should push objects instead of pulling them. Figure 1-18: Voltage Measuring or Detection Devices Consider the following wiring safety guidelines: Always use insulated tools and avoid all contact with bare terminals and grounded surfaces. Disconnect the dial-tone service from the premises wiring while working on it. If you cannot disconnect the service, take the telephone handset off-hook. The DC level will drop and normally no AC ringing current will be delivered. When cutting or drilling, be careful not to cut through or drill into concealed wiring or pipes. Make a small inspection opening before you start cutting. Consider the following wiring safety guidelines: (continued) When running telephone wiring on or near metallic siding, check for stray voltages and bond to ground (i.e., attach a ground wire from an earth or frame ground to the metallic siding to direct the voltage away from the installer) before beginning work. Keep telephone wiring away from bare power wires or lighting rods, antennas, transformers, steam or hot-water pipes, and heating ducts. Do not place telephone wire in a conduit, box, duct, or other enclosure containing power or lighting circuits of any type, and provide adequate separation between telephone and electrical wiring. Consider the following wiring safety guidelines: (continued) Do not work on telephone wiring if you wear a pacemaker because telephone-circuit voltages can disrupt them. Most electrical injuries involving telephone wiring result from sudden surges of high voltage on normally low-voltage wiring. Because a fatal lightning surge can be carried over telephone wire for many miles, never install or connect telephone wiring during electrical storms. Table 1-1: Residential and Light Commercial Telecommunications Wiring Purpose and Minimum Separation Before calling ”911," remember to collect all valuable information, such as: Type of injury or illness the victim has Time the accident took place Address or location of the accident Information from the victim’s medical alert bracelet or necklace, if any Any other important information that would help prepare the emergency response team before they arrive Figure 1-19: Medical Alert Pendants Figure 1-20: Vial of Life Table 1-2: DR. ABC The usual methods of contamination are: direct contact - contact with an infected person indirect contact - through air conditioning, or solid linens through a host - such as insects, worms, etc. Examples of infectious diseases are: Bacterial Infections - Throat infections, whooping cough, diphtheria, rheumatic fever, tuberculosis strains, cholera, staphylococcus infection, some forms of meningitis. Viral Infections - Measles, mumps, rubella, hepatitis, influenza, chicken pox, HIV, common cold, bronchitis. Parasitic Infections - Malaria, tapeworm, hookworm, itch mites, pubic and body lice. Fungal Infections - Ringworm, athlete's foot, thrush. Figure 1-21: Wearing Gloves Figure 1-22: The Nervous System Figure 1-23: The Cardiovascular System and Pulse Locations Figure 1-24: The Respiratory System Figure 1-25: The Musculoskeletal System Figure 1-26: Call “911” Figure 1-27: Secondary Examination Thoroughly examine the casualty by conducting a head-to-toe secondary examination: 1 Start at the top of the head: Check for bleeding, fractures, swelling, and pain. 2 Move to the victim’s face: Check airway/ breathing, eyes, facial fractures, bruising, and jaw line pain. 3 Move down to the neck area, shoulders, and chest: Check for bleeding, fractures, bruising, swelling, and pain. Look for any Medical Alert necklace. Thoroughly examine the casualty by conducting a head-to-toe secondary examination: (continued) 4 Examine the arms: Check for bleeding, fractures, soft tissue injuries, pain, and the victim’s power. (Power is the ability to squeeze tightly with their hands.) Look for any Medical Alert bracelet. 5 Next, observe the abdomen and pelvis: Check for rigidity, pain/tenderness, “guarding”, and incontinence. Thoroughly examine the casualty by conducting a head-to-toe secondary examination: (continued) 6 Finally, examine the legs: Check for bleeding, fractures, soft tissue injuries, and pain. 7 Remember to be sensitive to the victim’s age, as extra caution should be taken with young children and infants. There are actually three key methods for delivering EAR: Mouth-to-mouth: the method in which the rescuer seals the victim’s mouth with his or her mouth and breathes into the victim’s mouth. Mouth-to-nose: the method used when the victim has sustained facial injuries that prevent using the mouth. The rescuer closes the casualty’s mouth with his or her hand, seals the nose with his or her mouth, breathes gently, and then releases the casualty’s jaw to allow exhalation. There are actually three key methods for delivering EAR: (continued) Mouth-to-nose-and-mouth: the method used when resuscitating a child, as the rescuer's mouth can cover and seal the child's nose and mouth. Figure 1-28: Expired Air Resuscitation The steps for performing EAR: 1 Check the victim’s airway and open it, if necessary. If they aren’t breathing, place the victim on their back. Ensure their airway is open by tilting their head back. The steps for performing EAR: (continued) 2 Using the appropriate method for the victim, give two effective breaths, making up to five attempts to achieve two effective breaths. Watch the rise and fall of the chest. If an obstruction is suspected, attempt to open the airway again. Check their pulse. If a pulse is present and the victim is not breathing, commence EAR for adults and older children by giving one effective breath every 4 seconds (15 breaths per minute). For younger children and infants, give one effective breath every 3 seconds (20 breaths per minute). Check the victim's pulse and airway about every minute and always be ready for the victim to vomit. The steps for performing EAR: (continued) 3 Full breaths are used for adults or older children (9 years and above). Make sure that you lessen the force of the breaths when breathing into a young child or an infant. If delivered too forcefully, the air will be directed into the stomach, possibly causing the child to vomit. The method to be employed for infants is known as puffing. Puffing is when the rescuer fills his or her mouth with air and puffs it into the infant’s mouth. This will allow enough air pressure to satisfy the lung’s requirements, but not enough to impact on the stomach. The steps for performing EAR: (continued) 4 Continue EAR until the casualty begins breathing on his own, you are relieved by professional medical aid, or the victim goes into full cardiac arrest (at which point you must start cardiopulmonary resuscitation). Figure 1-29: Steps for Performing EAR There are two methods used to locate the correct position: the xiphoid location and the caliper method. Xiphoid location - Locate the small bone or bump at the base of the sternum. Using two fingers of one hand, measure up the sternum toward the victim’s heart. Place the palm of your other hand at this point. Your palm should now be over the center of the sternum, above your two fingers. You have located the victim’s heart, and can now begin external cardiac compressions. There are two methods used to locate the correct position: the xiphoid location and the caliper method. (continued) Caliper method - The middle finger of one hand is placed on the notch located above the sternum directly below the victim's throat. The middle finger of the other hand is placed on the small bone located at the base of the sternum. Both hands are moved together until the thumbs meet in the middle of the sternum. The lower hand is then positioned palm down at the location of the thumb of your upper hand. This also determines the location of the victim's heart for you to begin external cardiac compressions. Figure 1-30: Xiphoid Location Figure 1-31: Caliper Method Figure 1-32: One-Person CPR - Adult and Older Child A one-person CPR - adult and older child: 1 Check and clear airway. Look, listen, and feel for breathing. If not breathing, place the victim on their back on a firm flat surface. 2 Give two effective breaths. Assess the rise and fall of the chest. 3 Check for pulse (5–10 seconds). 4 Kneel beside casualty's chest. Locate correct hand position. 5 Place hands centrally over heart, fingers entwined. Lean over the victim with your arms straight and your elbows locked. A one-person CPR - adult and older child: (continued) 6 Perform 15 compressions, applying even pressure and compressing approximately 1/3 the depth of the chest. 7 Give two effective breaths. Relocate correct hand position. 8 Continue this cycle and check the victim's pulse approximately every minute. Figure 1-33: One-Person CPR Younger Child or Infant A one-person CPR - younger child or infant: 1 Check and clear airway. Look, listen, and feel for breathing. If not breathing, place the victim on their back on a firm flat surface. 2 Open airway. Two initial effective breaths. 3 Check for pulse (5–10 seconds). 4 Perform five compressions. 5 One breath should be given after every five compressions. 6 Continue this cycle and check the victim's pulse approximately every minute. Figure 1-34: Two-Person CPR - Adult and Older Child A two-person CPR - adult and older child: 1 Check and clear airway. Look, listen, and feel for breathing. If not breathing, place the victim on their back on a firm flat surface. 2 One rescuer positions close to the casualty's head and delivers breaths. The other positions on the opposite side of the body beside the chest and performs compressions. 3 Open airway. Two initial effective breaths. 4 Check for carotid pulse (5–10 seconds). A two-person CPR - adult and older child: (continued) 5 Perform five compressions. 6 One breath delivered on completion of the fifth compression. 7 Continue this cycle and check the victim's pulse approximately every minute. Figure 1-35: Trauma Accident The following are several types of wounds you may encounter: Incision is the type of wound made by the slicing of skin with a sharp instrument. Laceration is a deep wound with associated loss of tissue. This type of wound occurs when the skin is ripped. Abrasion is a wound where the skin layers have been scraped off. Puncture wounds are perforations, and may be due to anything from a corkscrew to a bullet. Amputation (avulsion) is the loss of a digit or limb by trauma. To help prevent infection complete the following steps: 1 Cleanse the wound and surrounding area gently with a mild soap and water, then rinse. Blot dry with a sterile pad or clean dressing. 2 Treat the wound. 3 Cover the wound to absorb fluids and to protect it from further contamination. 4 Secure the cover with first aid tape to keep out dirt and germs. The following steps will help control the bleeding: 1 Have the victim lie down. Elevate the injured limb higher than the victim's heart, unless you suspect a broken bone. 2 Control bleeding by applying direct pressure on the wound with a sterile pad or clean cloth. 3 If the bleeding is controlled by direct pressure, bandage firmly to protect the wound. Be sure not to apply the bandage too tight. The following steps will help control the bleeding: (continued) 4 If bleeding is not controlled by use of direct pressure, apply a tourniquet only as a last resort. A tourniquet may be applied if there is a threat of death due to severe loss of blood. 5 Call for medical help. Figure 1-36: Bandages The following steps will aid you in the treatment of puncture wounds: 1 Check the wound, but do NOT remove any penetrating objects. 2 Control the bleeding by applying direct pressure on the wound with a sterile pad or clean cloth. 3 If the bleeding is controlled by direct pressure, bandage firmly to protect the wound. Be sure not to apply the bandage too tight. 4 Elevate the injured limb if injuries permit. 5 Call for medical help. The following are steps to amputation treatment: 1 Stop the bleeding immediately. 2 Treat for shock as described in the following section, if necessary. 3 If the wound is not deep or bleeding too badly, cleanse the wound and surrounding area gently with a mild soap and warm water. 4 Cover the wound to absorb fluids and to protect it from further contamination. 5 Get professional medical help immediately. The following steps will help you treat a victim that is in shock: 1 Treat the known cause of shock as quickly as possible. 2 Maintain an open airway. 3 Keep the victim warm and lying flat. 4 Do not give the victim anything by mouth. The three degrees of burns are: First Degree - Discoloration of skin surface (redness), mild swelling, and pain. Usually additional medical treatment is not necessary. Second Degree - Deep burn with red or spotted appearance, blisters, considerable pain, swelling, and the surface of the skin appears wet. Burns may be potentially serious, requiring additional medical treatment depending on extent and location. Third Degree - Severe tissue destruction with a charred appearance, but no pain. Seek professional medical help immediately. It is critical that the casualty be disconnected from the electrical source, either by: 1 Turning off the power supply, disconnecting any plugs from the outlet, and isolating the electricity supply at the main power board if possible; or 2 Removing the casualty from the electrical source by separation with non-conducting materials, for example, a wooden stick or board, rope, or blanket. When high voltage electricity is involved in an accident, the symptoms include: Difficult or absent breathing Absent, weak, or irregular pulse Evidence of burns Evidence of fractures Entrance and exit wound burns Collapse and unconsciousness When high voltage electricity is involved in an accident, the treatment includes: 1 Go over the DR. ABC routine. 2 Call 911 for an ambulance. 3 Inform electrical authorities if high voltage is 4 5 involved. If the victim is in respiratory arrest, commence EAR. If the victim is in cardiac arrest, commence CPR. 6 Cool and cover burns with nonadhesive dressings. 7 Reassure the victim that everything will be okay. There are two main types of bone fractures: Closed fracture - the fracture of a bone that does not pierce the skin Compound fracture - the piercing of the skin when a fracture occurs Treatment of bone fractures: Keep the victim warm and still, treat for shock if necessary. Closed fracture - Splint the limb before the victim is moved, immobilizing the joint above and below the suspected fracture. Compound fracture - Do not touch or clean the wound. Secure a sterile pad or clean cloth firmly in place over the wound, and then tie with bandages or cloth strips. No matter which type of fracture is suspected, get medical assistance immediately. Figure 1-37: Splint Applied WARNING Do not move the victim until a splint has been applied. If there is a chance of a spinal injury, do NOT move the victim until medical assistance has arrived. The following steps will help you aid a victim suffering from heat exhaustion: 1 Instruct the victim to lie down in a cool, shaded area or an air-conditioned room and elevate the victim's feet. 2 Massage their legs toward the heart. The heart is not the primary mover of blood through the legs—muscle action is. With inactivity or shock, blood can tend to pool in the legs. 3 If the victim is conscious, give them cool water every 15 minutes until they recover. If the victim is unconscious, apply a cool wet compress to the head. In many instances, serious head injury is readily identified by: A straw-colored fluid oozing from the nose or ears. This is cerebrospinal fluid (CSF), which surrounds the brain. When a fracture occurs, usually at the base of the skull, the fluid leaks out under pressure into the ear and nose canals. Black eyes may indicate an impact elsewhere on the skull, not just the face. The kinetic energy from a blow, which is transmitted through the head and brain, is expelled through the eyes and behind the ears, causing bruising at these points. In many instances, serious head injury is readily identified by: (continued) Blurred or double vision. This symptom is common with concussions, indicating that the brain has been dealt a blow that temporarily affects its ability to correctly process the senses. The treatment of a minor eye injury is a follows: Flush the eye with water and wash the foreign object out of the eye. If this fails, touch the corner of a clean cloth to the object and lift it off the surface of the eye. Seek professional medical aid if vision is affected. Do not push the object around the eye's surface. Do not let the victim rub his or her eyes. Only use eye drops if prescribed by a doctor. Figure 1-38: Flush the Injured Eye REVIEW QUESTIONS 1 Always move ladders while they are in the ________ position. REVIEW QUESTIONS 2 Always use ________ tools and avoid all contact with bare terminals and grounded surfaces. REVIEW QUESTIONS 3 Minimum separations between residential and light commercial telecommunications wiring and other wiring are specified in the ________ standard. REVIEW QUESTIONS 4 As the heart pumps blood, each beat can be felt at various locations in the body. These are known as ________. REVIEW QUESTIONS 5 When placing your eyeware onto any type of surface, always place the ________ upward. REVIEW QUESTIONS 6 It’s estimated that about 7% of industrial accidents involve the unsafe use of ________. REVIEW QUESTIONS 7 Electrical burns to the victim may be ________ than they appear on the surface. REVIEW QUESTIONS 8 A ________ fracture is the fracture of a bone that does not pierce the skin. REVIEW QUESTIONS 9 Frames stamped with the imprint ________ meet stringent standards for strength and heat resistance. REVIEW QUESTIONS 10 If you are exposed to loud and continuous sound for more than ________ at ________, you need to wear hearing protection.