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?

Convection

Evaporation

Conduction

Radiation

Answer and Explanation

The Correct Answer is B

A: Convection involves the movement of air or liquid around the body, which then carries heat away but does not involve phase change like evaporation.
B: Evaporation is the process where liquid (sweat) turns into vapor, removing heat from the surface it evaporates from, which is the primary cooling mechanism in sweating.
C: Conduction involves direct transfer of heat through contact with cooler objects, not relevant to the drying of sweat.
D: Radiation refers to heat transfer through electromagnetic waves and does not require the presence of an intervening medium, unlike the evaporation of sweat.

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Correct Answer is D

Explanation

A: Low blood pressure is an objective finding that can be measured directly.

B: Shortness of breath is a subjective symptom reported by the patient.
C: Wound drainage is an objective finding that can be observed directly.

D: Feelings of fatigue are subjective symptoms reported by the patient, reflecting their personal experience rather than directly observable physical signs.

A. Hypoglycemia B. Report of dizziness C. Temperature of 39° C (102.2° F). D. History of cigarette smoking

Correct Answer is B

Explanation

A: Hypoglycemia does not directly correlate with a lower heart rate.

B: A heart rate of 56/min may indicate bradycardia, which can lead to symptoms like dizziness due to decreased cardiac output and subsequently reduced cerebral perfusion.
C: A fever would typically increase the heart rate, not decrease it.

D: Cigarette smoking is more commonly associated with an increased heart rate due to stimulants like nicotine.

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is D

Explanation

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Explanation

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