A nurse performing an assessment would correctly note that an absent pulse in one or more of the extremities indicates

Decreased plasma volume.

Problems with the heart's electrical conduction system.

Shock.

A blockage of blood flow.

Answer and Explanation

The Correct Answer is D

A.   Decreased plasma volume might cause overall weak pulses but would unlikely cause an absent pulse specifically localized in one or more extremities. Decreased plasma volume generally affects circulation systemically, not selectively in certain limbs.
B.   Problems with the heart's electrical conduction system primarily affect the rhythm and rate of the heart but do not directly cause absent pulses in extremities. These issues lead to irregular or abnormal heartbeats, not localized absence of pulses.
C.   Shock can result in weak or thready pulses due to poor blood flow, but shock alone would not typically cause a pulse to be completely absent in one extremity while present in others. Shock affects the circulatory system as a whole.

D.   A blockage of blood flow is the most likely cause of an absent pulse in one or more extremities. This could be due to atherosclerosis, embolism, or thrombosis, which can obstruct blood flow in specific areas, leading to no detectable pulse in those extremities.

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Free Nursing Study Resources

Correct Answer is A

Explanation

A: This helps reduce body temperature by increasing heat loss through evaporation and radiation. Removing layers allows the body’s natural cooling mechanisms to function more effectively.
B: This would be inappropriate because adequate hydration is crucial for a febrile patient to help regulate body temperature and prevent dehydration.
C: This would be counterproductive as it would add heat to the body instead of helping to lower the body temperature.
D: Increasing the room temperature would worsen the situation by making the environment warmer, which would hinder the body's ability to cool down naturally.

A. Convection B. Evaporation C. Conduction D. Radiation

Correct Answer is B

Explanation

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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A nurse performing an assessment would correctly note that an absent pulse in one or more of the extremities indicates

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