Practice Question
A nurse is assisting with teaching a newly licensed nurse about the loss of body heat. The nurse should include that heat loss that occurs when sweat dries on the skin is caused by which of the following mechanisms?
Answer Choices:
Correct Answer:
Evaporation
Rationale:
🟢 Evaporation occurs when liquid (sweat) on the skin surface changes into vapor, carrying heat away from the body.
🟢 This is a major cooling mechanism, especially during exercise, fever, or hot environments, and is essential in regulating body temperature.
🟢 Conduction is heat transfer through direct contact with a cooler object (e.g., lying on a cold surface).
🟢 Radiation is heat transfer through infrared rays to cooler surroundings without direct contact (e.g., losing heat to a cold room).
🟢 Convection is heat loss through air or water currents moving across the skin (e.g., a fan blowing cool air).
🟢 Since sweat dries and cools the body, this specifically describes evaporative heat loss.
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This question is from NurseLogic Knowledge and Clinical Judgment Advanced which contains 75 questions.
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From Exam
NurseLogic Knowledge and Clinical Judgment Advanced
75 Questions
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- Category: RN Nursing Exam(s)
- Subcategory: ATI Exam(s)
- Domain: RN ATI Fundamentals of Nursing
- Answer Choices: 4