Frostbite (COLD Injury)
Definition
Frosbite is a localized cold injury caused by exposure to cold temperatures (Thompson, JM, 1986, p 630).

Predisposing Factors
There are many predisposing factors associated with the occurrence of frosbite. People who can not adapt to the cold climate terhadp from warmer climates will experience a severe vasospasm and reduced heat production in ekstremitasnya when he is exposed to cold temperatures. Given the influence of race as a predisposing factor, ie, those who were black. Fatigue, hunger, young or old age, impaired circulation / peripheral vascular disease (due to atherosclerosis, diabetes mellitus, Raynaud's syndrome), alcohol, nicotine and hypoxia increase the risk or vulnerable to the occurrence frosbite frosbite. Factors that increase spending as contact with hot metal, wet skin frosbite contribute to the onset and severity of injury frosbite (Thompson, 1986, p 630; Kneisel, 1986, p 2213)

Classification
Frosbite diklasifikasian into 2 types: frosbite surface (superficial) and frosbite in (deep). Frosbite frosbite surface is on the skin to the subcutaneous tissue, with characteristic white area of ​​injury, such as candles, soft and anestetic. The capillary (capillary refill) no. At the time disbursement injury area becomes red, edema, pain, and later became mottled / discolored or purplish. Blister can form within 24 hours and broke in about 10 days, leaving a black eschar and rude. After 3-4 weeks apart eschar, leaving sensitive new epithelium. Throbbing pain (throbbing) and heat pain / burning (burning) which lasted several weeks. This area is sensitive to heat and cold for about a month, and part of that experience can frosbite excessive sweating.

Frosbite in causing injury to the skin, subcutaneous tissue, muscles, tendons and neurovascular structures. The part that suffered injury coarse and dense, cool, mottled / striped and blue or gray after thawing. Blister may not form but can also be formed after several weeks in places where there is a network that is able to live (viable) and non-viable tissue (nonviable). Edema usually affects the limbs and takes about a month to heal. When the blisters dry, black and basins formed, a visible dividing line because the network is still alive, regardless of the network or are interested dead.

Kneisel (1986) bedasarkan frosbite split into four levels of tissue injury degrees with their respective characteristics, namely:
Grade I: injury resulting in erythema after warmed back
Grade II: the formation of blisters
Grade III: Skin necrosis
Degree IV: soft tissue damage and gangrene may occur in the fingers or extremities.

Patofosiologi
Frosbite cell injury caused by freezing directly in the cell when injury or because of inadequate tissue perfusion as a result of vascular spasm and occlusion of small vessels in the area of ​​injury.

By freezing the cells directly (Crystallization), ice crystals form in the extracellular fluid and intracellular fluid osmotic pull, causing cell dehydration. Vascular changes that occur include vasoconstriction, decreased capillary perfusion and increased blood viscosity, accompanied by deposition and thrombus formation.

After thawing, vascular stasis occurs in the area of ​​injury as a result of obstruction of the blood vessels at the base. Edema occurred in the area of ​​injury and lasts for 2-3 days after thawing. Thrombus, interstitial hemorrhage and leukocyte infiltration can occur. Tissue necrosis occurs and becomes more apparent as edema were broke.
The extent of the injury is determined by the speed and heat of the skin expenditure.

Clinical Manifestations
Damage to small / light can also extensive to be able to cause the loss of a body part. Adapaun body part that is often affected include the hands, feet, nose and ears. Clinical picture can be observed depending on the type (see classification, as described above).
Management
Surgery
1. Escharotomy
2. Sympathectomy for severe spasm and pain
3. Debridement after retraction of viable tissue (13 weeks - 4 months after injury)
4. Nonviable extremity amputation after tissue retraction viable, maybe a few months
after injury.

Medications
1. Tetanus immunization 0.5 ml IM
2. Plasma expanders: dextran 40, 20 ml / kg IV every 24 hours to reduce sediment;
therapy is still controversial.
3. Antibiotics: tetracycline or ampicillin for prophylaxis, 250 mg po every 6 hours.
4. Narcotic analgesics: morphine 15 mg IM every 3 hours or
5. Antipyretic analgesics: aspirin, 600 mg po every 3 hours.

Support
1. Soaking in warm water for 20 minutes with a temperature of 38 ° - 45 ° C (100 ° - 112 ° F)
2. Protect the patient.


Assessment
Medical history
Clients may complain of pain (burning sensation) or pulsed.
Sensitive to heat and cold

Physical examination
Assess skin color, lesion characteristics:

Frosbite surface (superficial), will be obtained:
Injury-white areas, such as candles; soft and anestetic.
-Charging capillary (capillary refill) no.
-At the time disbursement injury area becomes red, edema, pain, and later became
Dotted / stripe or purplish.
-Blister, can be broken, and coarse black eschar.
-Area frosbite to excessive sweating.

Frosbite In, is likely to be obtained:
-Areas injury rough and dense, cool, mottled / striped and blue or gray after thawing.
-Blister may not form but can also be formed
-Edema.
-When the blister dry, black and basins formed

Kaji also an infection, which is characterized by:
-There is a pussy
-Redness
-Smell
-Fever

Diagnostics: increased leukocytes.

Nursing Diagnosis and Intervention
Disorders of peripheral tissue perfusion
§ Soak in warm water with a temperature of 38 ° - 45 ° C for 20 min.
§ When soaked avoid skin contact with the container
§ Instruct clients not to smoke in order to avoid the vasoconstriction.

Impaired skin integrity
§ Use a sterile linen
§ Isolation limb or client to prevent infection
§ Use the bed cradle
§ Maintain order intact blister
§ Elevate periodic limb

Impaired physical mobility and comfort
§ Begin the exercise movement
§ Teach relaxation techniques
§ Collaboration of analgesic

Concept of self-body image disturbance
§ Encourage clients to express their feelings about your body and appearance.
§ Assess the client's reactions fear rejection by others
§ Encourage clients to express grievances, anger, a sense of sadness, a sense of
guilt, fear the possible loss of the limb or function.
§ Assist in through the stages of grieving
§ Observation of the signs of depression and apathy
§ Inform the client that the healing process takes a long time and not sure;
provide accurate information about the healing
§ Encourage the client to express his dissatisfaction and frustration.
§ Involve the client in making decisions
§ Thank feeling angry clients.

Lack of knowledge
§ Instruct the client to protect the extremities of temperature extremes and
sudden changes in temperature / fast, when the network is sensitive to
temperature and cooling / freezing will cause the loss of tissue.
§ Instruct the client to avoid tight clothing or menakan area can
lower circulation.
§ Instruct client to avoid smoking to lower the vasoconstriction.
§ Instruct client about precautions to prevent the next attack
or injury that is often repeated in the experience frosbite: use heated clothing;
avoid fatigue, hunger, alcohol when exposed to cold lingungan.



Evaluation
The network can be protected
• Liquefaction occurs rapidly with no clotting occurs again.
• The network is free from infection.
• Healing enables occur without surgical intervention
• Clients can perform extension and flexion of the joints

Clients assess themselves realistically
• Client start again with the level of ability to perform activities.
• Clients develop interest and activities in accordance with the level keterbatasnnya.
• State kepuasanya in conducting interpersonal relationships
Clients avoid further injury to the area frosbite and avoid repetitive injuries / next
• Clients avoid narrow clothes, pressing area.
• Clients do not smoke
• Clients use protective equipment.
• Clients avoid fatigue, hunger and alcohol when exposed to a cold environment

Bibliography
Kneisel, C.R., Ames, S.W., (1986). Adult Health Nursing a Biopsychosocial Approach, Addison-Wesley Publishing Company, Massachusetts, pp. 2213-2215.

Thompson, J.M., et al., (1986). Clinical Nursing Practice, The C.V. Mosby Co., St. Louis, pp. 630-632.
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