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What is hypothermia and how is it defined?
Hypothermia is defined as a core temperature below 35 °C (95 °F) without circulatory compromise.
What are the recommended methods for rewarming in moderate to severe hypothermia?
Active, external rewarming such as warming blankets and immersion are recommended.
When is internal, core rewarming indicated in severe hypothermia?
Internal, core rewarming is indicated in severe hypothermia with physiological instability, circulatory failure, or cardiac arrest when rapid rewarming is necessary.
What is hyperthermia and how is it defined?
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Who is often affected by exertional heatstroke?
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Study Notes
Hypothermia
- Hypothermia is a medical condition characterized by an abnormally low body temperature, typically below 35°C (95°F).
- It can be caused by exposure to cold temperatures, immersion in cold water, or certain medical conditions.
Rewarming in Moderate to Severe Hypothermia
- Recommended methods for rewarming in moderate to severe hypothermia include:
- Passive rewarming, which involves removing wet clothing, drying the patient, and covering them with blankets.
- Active rewarming, which involves using external heat sources, such as electric blankets, warm water bottles, or heated intravenous fluids.
Internal, Core Rewarming
- Internal, core rewarming is indicated in severe hypothermia when the patient's core temperature is below 28°C (82°F) and they have a high risk of cardiac arrest.
- Methods of internal rewarming include:
- Heated humidified oxygen administration
- Warmed intravenous fluids
- Peritoneal lavage with warm fluids
- Cardiopulmonary bypass
Hyperthermia
- Hyperthermia is a condition characterized by an abnormally high body temperature, typically above 40°C (104°F).
- It can be caused by excessive heat, humidity, and strenuous physical activity, or certain medical conditions.
Exertional Heatstroke
- Exertional heatstroke is a life-threatening condition that occurs when the body's heat-regulating mechanism is overloaded, causing the body temperature to rise rapidly.
- It often affects:
- Athletes and individuals who engage in strenuous physical activity, especially in hot and humid environments.
- Military personnel and individuals who wear protective gear or clothing that traps heat.
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Description
Test your knowledge of hypothermia and hyperthermia with this quiz. Learn about the definitions, symptoms, and treatment options for both conditions.
