Musculoskeletal Disorders Part I Final

Musculoskeletal Disorders

Part I

Osteoporosis

Fractures

Degenerative Joint Disease/Osteoarthritis

Total Hip and Knee Prostheses

Bone Infections / Osteomyelitis

Gout

Emergency & Ortho Nursing

……..is Not for the Faint of Heart !

Fractured femur 2* Gun Shot Wound

Transverse fracture

Oblique fracture / spiral fracture / torsion fracture

Green stick fracture

Concept Map: Selected Topics in Musculo-Skeletal Nursing

ASSESSMENT

Physical Assessment

Inspection

Palpation

Percussion

Auscultation

“Neuro / Circ Checks”

-”The 6 P’s”

Lab Monitoring

PATHOPHYSIOLOGY

Fracture

Osteoporosis

Degenerative Joint Disease

Osteoarthritis

Osteomyelitis

Gout

Amputation

Total Joint Replacement

PHARMACOLOGY

Opioids

NSAIDs

Antibiotics

Disease Specific

Care Planning

Plan for client adl’s,

Monitoring, med admin.,

Patient education, more…based

On Nursing Process:

A_D_O_P_I_E

NURSING DIAGNOSES THAT APPLY….

Nursing Interventions & Evaluation

Execute the care plan, evaluate for

Efficacy, revise as necessary

Nursing Diagnoses That (Might) Apply

Pain, acute

Comfort, impaired

Mobility, altered

Self-care deficit –feeding, grooming; bathing, hygeine; toileting

Falls, risk for

Skin breakdown, risk for

Constipation, risk for

Diversional activity, risk for

Mobility, Physical, impaired

Mobility, bed, risk for

Walking, impaired,

Tissue perfusion, impaired peripheral

Peripheral neurovascular dysfunction, risk for

Knowledge, deficient

Body image, disturbed

Grieving

More……

Musculoskeletal Disorders

Objectives

See the Study Guide for Complete List of Objectives

Compare and contrast different types of fractures

Discuss the usual healing processes for bone

Identify complications of fractures

Describe the nursing care of the client with casts or traction, including client education

Prioritize nursing care for patients who are at risk for osteopenia

Describe the role of drug therapy, diet, and exercise in management of osteoporosis.

Musculoskeletal Disorders

Objectives—

See the Study Guide for Complete List of Objectives

Describe the pain management of client with bone disorders

Prioritize nursing care for a patient who has had a hip

ORIF or knee replacement

Identify common types of amputations

Identify appropriate nursing care for patients with degenerative joint disease (DJD)

Prioritize nursing care for patients who are at risk for osteomylitis (bone infection)

Describe the role of drug therapy in prevention and management of degenerative joint disease

Describe the causes of gout and appropriate treatments.

Musculoskeletal Disorders

Review of Bone physiology

this is a picture of normal bone, with osteoblasts rebuilding injured or old bone, faster than osteoclasts can break it down

o o Healthy bone o

Musculoskeletal Disorders

 This is one osteoclast dissolving bone

As part of the normal healing process

MusculoSkeletal Disorders

Healthy bone provides structure and support for the human body.

The marrow makes stem cells which produce our red and white cells when they mature.

Musculoskeletal Disorders

----Osteoporosis

Osteoporosis– number one cause of fractures in the elderly,

>1.5 million per year

Primary Osteoporosis is caused by osteopenia or thinning of the bone. This occurs when osteoclastic bone loss is faster than osteoblastic (bone building) activity.

This is measured by BMD (bone mineral density)

Osteopenia = T-score of less than- 1.0

Treatment starts here, new guidelines 2008

Osteoporosis = T-score of > -2.5

Musculoskeletal Disorders-

-----Osteoporosis

Secondary Osteoporosis

Caused by other disease mechanisms, or treatments, i.e. long term corticosteroids, methamphetamine or alcohol abuse, or prolonged immobility – can occur within 12 weeks

Treatments are the same for both types and osteoclastic activity is the same

Low-power scanning electron microscope image of normal bone architecture in the 3 rd lumbar vertebra of a 30 year old woman marrow and other cells have been removed to reveal thick, interconnected plates of bone

Slides courtesy of the Bone Research Society BRS, UK

Low-power scanning electron microscope image of osteoporotic bone architecture in the 3 rd lumbar vertebra of a 71 year old woman marrow and other cells have been removed to reveal eroded, fragile rods of bone

Detail of a trabicular bone element perforated by osteoclast action-note pitting of the bone ‘stalagmite’

Musculoskeletal diseases

Osteoporosis Risk Factors

 Age

Post-menopause (lack of estrogen stimulation)

Thin lean body build

Asian or thin Caucasian race

Calcium and Vitamin D deficiency

Lack of weight bearing exercise

Alcohol abuse

Tobacco use

Excessive caffeine use (> 3 cups per day)

Eating disorders

Malabsorption disorders

Musculoskeletal diseases

Osteoporosis

Diagnostics:

DEXA Scan Screening annually of post-menopausal women

DEXA Screening for hypothyroid and hyperthyroid patients

Qualitative US – not used much

Bone Scan is used for differential diagnostics, i.e. to rule out bone cancer

Labs for Calcium, Magnesium, Phosphorus levels

Urine for pyridinium levels

DXA Scan

This is a typical bone densitometry study. A low dose x-ray is performed of the lumbar spine, hip (shown here) or wrist.

From the resulting image

/measurement, calculations can be made to determine the density of the patient's bone

(T-score) and compare it to the reference standard of a healthy thirty-year-old of the same sex and ethnicity to determine future risk of fracture.

http://www.radiologyinfo.org/en/info.cfm?pg=dexa

Musculoskeletal diseases

Osteoporosis Treatments and Nursing Interventions

Educate – Side effects of meds

 Calcium supplementation – new evidence is 1700 mg of calcium per day, or more for post-menopausal women not on hormone therapy. May use TUMS if stomach is upset with supplements

Exercises

Fall prevention and safety

Biphosphonates i.e. Fosamax, Actonel, Boniva– have to be taken

1 hour before any other foods or vitamins, with only water to be absorbed .

Vitamin D therapy – not usually needed in the sunny desert, found in dairy and green leefy vegetables

Musculoskeletal Disorders

Fracture treatment

Nursing primary concern is to assess and prevent neuro-vascular dysfunction.

 Neuro / circulation checks should be done of the affected limb every

15 minutes x 4, then every 30 minutes x2, then every hour. ( The book says every hour, but that is really too long, and your patient could go into shock)

Immobilize the limb

Control the pain

 Assess for shock

Risk for Peripheral Neurovascular deficit

Other fracture interventions (with casting or immobilization/traction).

Monitor for numbness, tingling, hyperesthesia, hypoesthesia

Monitor for DVT’s – check pulses and color

Instruct the client to examine the skin daily for any breakdown or alterations, call MD if oozing or redness occur

Instruct client to avoid crossing their legs

Instruct patient to completely abstain from tobacco

Remove home safety hazards in the home

Instruct patient not to scratch underneath the cast or around the pins/traction

Give patient anticoagulants and analgesics if ordered

Instruct patient to take vitamins, adequate amoaunts of magnesium, vitamin

C, etc…for healing.

Neurovascular

Components:

“The 6 P’s”

Pain

Early or

Late Signs

Assessment Parameters

Early

Paresthesia

Pallor

Polar

Paralysis

Pulses

Early

Early

Late

Late

Late

Client Teaching /

Symptoms to Report

Assess area involved using 0 to 10 rating scale:

0 = no pain

10 = worst pain imaginable

Increasing pain not relieved with elevation or pain medication

Assess for numbness/tingling, pins or needles sensation:

Should be absent.

Assess capillary refill.

Brisk is < 3 seconds

Numbness or tingling, pins or needles sensation

Increased capillary refill time > 3 seconds, blue fingers or toes

Assess skin temperature by touch:

Warm <or> Cool

Assess mobility:

Moves fingers or toes

Able to plantar dorsiflex the ankle area not involved or restricted by cast

Cool/cold fingers or toes

Unable to move fingers or toes

Assess pulse(s) distal to injury:

Pulse is palpable and strong

Weak palpable pulses, unable to palpate pulses, pulse detected only with

Doppler

Musculoskeletal Disorders

FracturesPathological fractures

 occur when abnormal force is applied, or the bone is already weakened (osteoporosis, cancers, sarcomas, benign bone cysts, etc.).

The type of fracture depends on the type of loading force and stress applied to the bone. See below.

 Closed - Greenstick -Spiral - Open (compound)

 This is a photograph of 70 year old woman who first presented like this with a massive chondrosarcoma of her right upper humerus of 8 months duration. She refused all treatment, and she died of a massive haemorrhage when the tumour burst the following week.

http://worldortho.com/dev/index.php?option=com_content& task=view&id=1814&Itemid=328

Musculoskeletal Disorders

Fractures-

Complications of fractures include:

Fat emboli syndrome/CVA/Stroke

Hematoma (leakage from the bone marrow usually), which can also be a hemmorhage

Callus formation

DVT - thromboembolism

Infection – to Osteomyelitis

Ischemic necrosis

Fracture blisters

Delayed union, nonunion, and malunion

Osteoblastic proliferation…..

 i.e. Osgood’s Schlatter’s

 Osteoblastic proliferation:

Osgood Schlatter’s is a common disorder among athletes and runners stemming from small fractures of the tibial plateau from impact which heals builds up bone callous.

Immobilizing Interventions:

Casts, Splints, & Traction

Perform/assist with relevant laboratory, diagnostic, and therapeutic procedures within the nursing role, including:

Preparation of the client for the procedure.

Client teaching (before and following the procedure).

Accurate collection of specimens.

Accurate interpretation of procedure results (compare to norms) and appropriate notification of the primary care provider.

Assessment and evaluation of the client’s response (expected, unexpected adverse response, comparison to baseline) to the procedure.

Planning and implementing body system specific interventions as appropriate.

Monitoring and taking actions, including client education, to prevent or minimize the risk of complications.

Recognizing signs of potential complications and reporting to the primary care provider.

Recommending changes in the test/procedure as needed based on client findings.

Protect the client from injury.

Monitor therapeutic devices

(drainage/irrigating devices, chest tubes), if inserted, for proper functioning.

Identify the client’s prognosis based on knowledge of pathophysiology and understanding of the client’s pathology report.

 Casts

Casts are more effective than splints or immobilizers because they cannot be removed by the client.

Types of casts include:

Short and long arm casts.

Short and long leg casts.

Spica cast, which refers to a portion of the trunk and one or two extremities.

Body cast, which encircles the trunk of the body.

 Splints and Immobilizers

Splints are removable and allow for monitoring of skin swelling or integrity.

Splints can be used to support fractured/injured areas or used for postparalysis injuries to avoid joint contracture.

Immobilizers are prefabricated and are fastened with

Velcro straps.

 Traction

Traction uses a pulling force to promote and maintain alignment to the injured area. In straight or running traction, the countertraction is provided by the client’s body. In balance suspension traction, the countertraction is produced by devices such as slings or splints.

 Goals of traction include:

Realignment of bone fragments.

Decreasing muscle spasms and pain.

Correcting or preventing further deformities

 Types of Traction

Manual

Skin

Skeletal

Halo Traction

Pin Site Care

* Pin care is done frequently throughout immobilization (skeletal traction and external fixation methods) to prevent and to monitor for signs of infection including:

--Drainage (color, amount, odor).

--Loosening of pins.

--Tenting of skin at pin site

(skin rising up pin).

Pin care protocols (use of hydrogen peroxide, povidone iodine) are based on provider preference and institution policy.

A primary concept of pin care is that one cotton-tip swab is used per pin to avoid cross-contamination.

Every 8 hr is a common parameter for pin care schedule.

Immobilization: (Casts, Splints, & Traction)

Casts plaster & fiberglass

Bi-Valved (bivalve) Plaster Cast

Posterior Splints

Crutchfield Tongs

Halo Traction

Stryker Frame

External Fixation

External fixation involves fracture immobilization using percutaneous pins and wires that are

attached to a rigid external frame.

Used to treat:

Comminuted fracture with extensive soft tissue.

Leg length discrepancies from congenital defects.

Bone loss related to tumors or osteomyelitis.

Advantages include:

Immediate fracture stabilization.

Allows three plane correction of the injury.

Minimal blood loss occurs in comparison with internal fixation.

Allows for early mobilization and ambulation.

Disadvantages include:

Risk of pin tract infection.

Potential overwhelming appearance to client.

Musculoskeletal Disorders

Fractures- complications

Acute Compartment Syndrome (ACS)

 A serious condition which can lead to a loss of life and limb, usually an arm or a leg. The swelling of an injury or trauma causes lack of innervation and compromised circulation to the affected part of the body, causing tissue death and necrosis. Edema causes this.

 Treatment is mandated by alleviating the pressure.

 The most common type of acute compartment syndrome in the hospital is infiltration of IV fluids, and in trauma victims.

Musculoskeletal Disorders

--Acute Compartment Syndrome (ACS)

Musculoskeletal Disorders

Signs and Symptoms of ACS:

Greater pain with passive movement than with active movement

Swelling

Pain not relieved with analgesics

These are early signs and the physician needs to notified at once.

 ACS can lead to renal failure, shock, and loss of the limb or life.

Musculoskeletal Disorders

 Acute Compartment Syndrome (ACS)

Musculoskeletal Disorders

Acute Compartment Syndrome (ACS)

Treatment

 Determine the cause of swelling,

If the cast is too tight then it needs to be cut off.

If the dressing is too tight, loosening the bandage will release the pressure

Surgical release of tissue pressure is often required. (Fasciotomy)

Musculoskeletal Disorders

Assessing fractures and trauma:

Color or pallor of patient

Color of the limb distal to the injury

Movement

Sensation

Distal pulses

Pain

Skin temperature

Capillary refil

Musculoskeletal Nursing

Pharmacology Associated with

Musculoskeletal Patients--General Information

 Assess/monitor the client’s need for pain medication, and plan and provide care to meet the client’s needs for pain intervention.

 Assess/monitor the client for actual/potential specific food and

medication interactions.

 Assess/monitor the effectiveness of pain intervention, and advocate for the client’s needs as indicated.

 Identify contraindications, actual/potential incompatibilities, and

interactions between medications, and intervene appropriately.

 Provide appropriate client

education, and reinforce client teaching regarding the purposes and possible effects of pain medications.

 Identify symptoms/evidence of an

allergic reaction, and respond appropriately.

 Evaluate/monitor and document the therapeutic and adverse/side

effects of medications.

 Assess/monitor the client for

expected effects of medications.

Assess/collect data regarding the client’s medication use over time.

 Assess/monitor the client for

side/adverse effects of medications.

Musculoskeletal Pharmacology : Medications for Pain & Inflammation

NSAIDs—Non Steroidal Anti-Inflammatory Drugs

Prototypes: 1 st Generation: Aspirin 2 nd Generation: celecoxib (Celebrex®)

Pharmacological Action

Inhibition of cyclooxygenase: Inhibition of

COX-2 results in ↓ inflammation, pain, and fever. Inhibition of COX-1 results in the ↓ of platelet aggregation

Aspirin contraindications include:

Peptic ulcer disease.

Bleeding disorders (e.g., hemophilia, vitamin K deficiency)

Hypersensitivity to aspirin and other NSAIDs.

Pregnancy (Pregnancy Risk Category D).

Children with chickenpox or influenza.

Therapeutic Uses

Inflammation suppression

Analgesia for mild to moderate pain

Fever reduction

Dysmenorrhea

Low level suppression of platelet aggregation

 Use NSAIDs cautiously in older adults,

clients who smoke cigarettes, and in clients with H. pylori infection, hypovolemia, hay fever, chronic

urticaria, and/or a history of alcoholism.

Musculoskeletal Pharmacology : Medications for Pain & Inflammation

NSAIDs—Non Steroidal Anti-Inflammatory Drugs

Prototypes: 1 st Generation: Aspirin 2 nd Generation: celecoxib (Celebrex®) CONTINUED…

Therapeutic Nursing Interventions and

Client Education

Advise the client to stop aspirin 1 week before an elective surgery or expected date of childbirth.

Advise the client to take aspirin with food, milk, or a full glass of water to reduce gastric discomfort.

Instruct the client not to chew or crush enteric-coated or sustained-release aspirin tablets.

Advise the client to notify the primary care provider if signs and symptoms of gastric discomfort or ulceration occur.

Clients unable to tolerate aspirin due to GI ulceration, risk of bleeding, or renal impairment should be prescribed a 2nd generation NSAID, such as

celecoxib (Celebrex).

One 1st generation NSAID, ketorolac (Toradol), is used for short-term treatment of moderate to severe pain such as that associated with postoperative recovery.

Ketorolac provides analgesia without antiinflammatory effect.

When ketorolac is used concurrently with opioids, the analgesic effect of opioids is enhanced without the occurrence of adverse effects associated with opioids

(e.g., respiratory depression, constipation).

When ketorolac is used with other NSAIDs serious adverse effects can occur; therefore, ketorolac should be used no more than 5 days. Usually started as parenteral administration and then progresses to oral doses.

Depending on therapeutic intent, effectiveness of NSAID USE may be evidenced by:

Reduction in inflammation.

Reduction of fever.

Relief from mild to moderate pain or dysmenorrhea.

Platelet aggregation suppression.

Musculoskeletal Pharmacology : Medications for Pain & Inflammation

Acetaminophen

Prototypes: acetaminophen (Tylenol® )

Pharmacological Action

 Nursing Interventions and Client

Education

Acetaminophen slows the production of prostaglandins in the central nervous system.

Therapeutic Uses

Analgesic (relief of pain) effect

Antipyretic (reduction of fever) effects

Side/Adverse Effects:

Nursing Interventions and Client Education

Acute toxicity that results in liver damage with early symptoms of nausea, vomiting, diarrhea, sweating, and abdominal discomfort progressing to hepatic failure, coma, and death

Advise the client to take acetaminophen as prescribed and not to exceed 4 g per day.

Administer the antidote,

Acetylcysteine (Mucomyst® ).

Acetaminophen is a component of multiple prescribed and over-the-counter medications. Keep a running total of daily acetaminophen intake and follow recommended dosages as prescribed by the primary care provider to prevent toxicity, not to exceed 4 g per day.

In the event of an acetaminophen overdose, liver damage can be reduced by administering a weightbased dosage of the antidote acetylcysteine

(Mucomyst) in a diluted form via an oroduodenal tube (has an unpleasant odor that ↑ risk of emesis).

Nursing Evaluation of Medication

Effectiveness

Depending on therapeutic intent, effectiveness may be evidenced by:

Relief of pain.

 Reduction of fever.

Use cautiously in clients who consume three or more alcoholic drinks/day and those taking warfarin (interferes with metabolism).

Musculoskeletal Pharmacology : Medications for Pain & Inflammation

Opioid Agonists

Prototypes: Morphine sulfate

Pharmacological Action

Opioid agonists, such as morphine, codeine, meperidine, and other morphine-like medications (fentanyl), act on the mu receptors, and to a lesser degree on kappa receptors.

Activation of mu receptors produces analgesia, respiratory depression, euphoria, and sedation, whereas kappa receptor activation produces analgesia, sedation, and ↓ GI motility.

Therapeutic Uses

Relief of moderate to severe pain (e.g., postoperative pain, myocardial infarction pain, cancer pain)

Sedation

Reduction of bowel motility

Codeine: cough suppression

Contraindications/Precautions

Contraindicated: after biliary tract surgery.

for premature infants (during and after deliverydue to respiratory depressant effects).

Used Cautiously: because of respiratory depression asthma, emphysema, and/or head injuries

Infants and older adult clients

Pregnant clients

Clients in labor

Clients with inflammatory bowel disease

Clients with an enlarged prostate

Demerol ® -- meperidine

Repeated use of meperidine (Demerol) can result in the accumulation of normeperidine, which can result in seizures and neurotoxicity.

Do not administer meperidine more than

600 mg/24 hr, and limit its use to less than

48 hr.

Morphine Sulfate

Side Effects / Adverse Effects

Respiratory depression

Constipation

Orthostatic hypotension

Urinary retention

Cough suppression

Sedation

Biliary colic

Emesis

Opioid overdose triad of coma, respiratory depression, and pinpoint pupils

Nursing Interventions /

Client Education

--Monitor the client’s vital signs.

--Stop opioids if the client’s respiratory rate is less than 12/min, and then notify the primary care provider.

--Avoid the use of opioids with CNS depressant medications (e.g., barbiturates, benzodiazepines, and consumption of alcohol).

-↑ fluid intake and physical activity.

--Administer a stimulant laxative, such as bisacodyl (Dulcolax), to counteract ↓ bowel motility, or a stool softener, such as docusate sodium (Colace), to prevent constipation.

--Advise the client to sit or lie down if symptoms of lightheadedness or dizziness occur.

--Avoid sudden changes in position by slowly moving the client from a lying to a sitting or standing position.

--Provide assistance with ambulation as needed.

--Advise the client to void every 4 hr.

--Monitor I&O.

--Assess the client’s bladder for distention by palpating the lower abdomen area every4 to 6 hr.

--Advise the client to cough at regular intervals to prevent accumulation of secretions in the airway.

--Auscultate the client’s lungs for crackles, and instruct the client to ↑ intake of fluid to liquefy secretions.

--Advise the client to avoid hazardous activities such as driving or operating heavy machinery.

--Avoid giving morphine to clients who have a history of biliary colic. Use meperidine as an alternative.

--Administer an antiemetic such as promethazine (Phenergan).

--Monitor the client’s vital signs.

--Place the client on a ventilator.

--Administer opioid antagonists, such as naloxone (Narcan) or nalmefene (Revex).

Musculoskeletal Pharmacology Medications for Pain & Inflammation

Agonist – Antagonist Opioids

Prototypes: pentazocine (Talwin ®)

Contraindications/Precautions

Pharmacological Action

Compared to pure opioid agonists, agonistantagonists have:

 Use cautiously in clients with a history of myocardial infarction ( ↑ cardiac workload) and clients who are physically dependent on opioids.

--A low potential for abuse causing little euphoria. In fact, high doses can cause adverse effects (e.g., anxiety, restlessness, mental confusion).

 Nursing Interventions and Client

Education

--Less respiratory depression. Kappa receptors will cause a certain degree of respiratory depression and then no more (have a

“ceiling”).

 Take the client’s baseline vital signs. If the client’s respiratory rate is less than 12/min, withhold the medication and notify the primary care provider.

Therapeutic Uses

 Warn the client not to ↑ dosage without consulting the primary care provider.

Agonists-antagonists opioids relieve mild to moderate pain; not used for treatment of severe pain.

 Nursing Evaluation of Medication

Effectiveness

--Monitor for improvement of symptoms, such as relief of pain.

Musculoskeletal Pharmacology Medications for Pain & Inflammation

Opioid Antagonists

Prototypes: naloxone (Narcan ®)

Pharmacological Action

Opioid antagonists interfere with the action of opioids by competing for opioid receptors. Opioid antagonists have no effect in the absence of opioids.

Therapeutic Uses

Treatment of opioid overdose

Reversal of effects of opioids, such as respiratory depression

Reversal of respiratory depression in an infant

Therapeutic Nursing Interventions and Client Education

Naloxone has rapid first-pass inactivation and should be administered IV, IM, or SC.

Do not administer orally.

Observe the client for withdrawal symptoms and/or abrupt onset of pain. Be prepared to address the client’s need for analgesia (e.g., if given for postoperative opioid-related respiratory depression).

Contraindications/Precautions

Hypersensitivity

Opioid dependency

Pregnancy Risk Category B

Nursing Evaluation of Medication

Effectiveness

Reversal of respiratory depression (e.g., respirations are regular, client is without shortness of breath, respiratory rate is 16 to

20/min in adults and 40 to 60/min in newborns)

Musculoskeletal Pharmacology Medications for Pain & Inflammation

Adjuvant Pain Medications

Prototypes:Tricyclic anti-depressants; anticonvulsants; CNS Stimulants; antihistamines; glucocorticoids; & biphosphonates

Tricyclic antidepressants:

amitriptyline (Elavil)

Anticonvulsants: carbamazepine

(Tegretol), gabapentin (Neurontin), phenytoin (Dilantin

CNS stimulants: methylphenidate (Ritalin), dextroamphetamine (Dexedrine)

Antihistamines: hydroxyzine

(Vistaril)

Glucocorticoids: dexamethasone

(Decadron), prednisone (Deltasone)

Bisphosphonates: etidronate

(Didronel), pamidronate (Aredia)

Pharmacological Actions

Adjuvant medications for pain enhance the effects of opioids.

Therapeutic Uses

Used in combination with opioids – cannot be used as a substitute for opioids

Treating pain with an adjuvant medication allows for lower dosages of opioids, and thereby ↓ the adverse effects experienced with opioids (e.g., sedation and constipation).

Help alleviate other symptoms that aggravate pain (e.g., depression, seizures, dysrhythmias)

Used in the treatment of neuropathic pain (e.g., cramping, aching, burning, darting and lancinating pain).

Used in cancer-related conditions (e.g.,

↑ intracranial pressure, spinal cord compression, bone pain).

Musculoskeletal Pharmacology Medications for Pain & Inflammation

Antigout Medication

Prototypes: colchicine

 Contraindications/Precautions

Pharmacological Action

Colchicine and indomethacin ↓ inflammation in clients with gout by possibly preventing infiltration of leukocytes. These medications do not effect uric acid production or excretion.

Allopurinol inhibits uric acid production.

Avoid use of colchicine during pregnancy (FDA Pregnancy

Risk Category C, if used orally; Category D, if used intravenously).

Use colchicine cautiously in older adults, debilitated clients, and clients with renal, cardiac, and gastrointestinal dysfunction.

Probenecid inhibits uric acid reabsorption by the renal tubules.

Therapeutic Uses

 Therapeutic Nursing Interventions and

Client Education

Colchicine and indomethacin:

--Treatment of acute gout attacks.

--If given in response to precursor symptoms of an acute gout attack, can abort the attack.

 Instruct the client to concurrently take preventive measures such as avoiding alcohol and foods high in purine (e.g., red meat, scallops, cream sauces). The client should ensure an adequate intake of water, exercise regularly, and maintain an appropriate body weight.

-↓ in the incidence of acute attacks for clients with chronic gout.

 Nursing Evaluation of Medication

Effectiveness

Allopurinol and probenecid:

 Depending on the therapeutic intent, effectiveness may be evidenced by:

--Hyperuricemia (chronic gout secondary to cancer chemotherapy).

 --Improvement of pain caused by a gout attack (e.g., ↓ in joint swelling, redness, and uric acid levels).

Probenecid:

 -↓ in number of gout attacks.

--Prolongs the effects of penicillins and cephalosporins by delaying their elimination.

 -↓ in uric acid levels.