An older male adult in a cardiac rehabilitation exercise class refuses to participate in the cool-down phase of the activity, and 2 minutes later, he passes out but regains conscious-ness quickly
Which of the following instructions does the nurse include in patient teach-ing to reinforce the importance of cooling down after exercise to this man? a. Cardiac output diminishes with age.
b. Mobility capacity decreases with age.
c. Baroreceptor function diminishes with age.
d. Sensory perception diminishes with age.
C
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A Incorrect. An acute problem due to decreased cardiac output should appear dur-ing the "real" exercise.
B Incorrect. The man is mobile enough to participate in the exercise program.
C Correct. During exercise, the body shunts blood to the skeletal muscles to supply enough oxygen to meet the increased metabolic demands of the muscles. If the exercise is suddenly withdrawn, the blood pools in the skeletal muscles temporarily, and the older adult loses consciousness from transient hypotension. This is because baroreceptor responsiveness declines with age, so the body does not respond as readily to the need for changes in blood pressure. The cool-down period compensates for this effect.
D Incorrect. Gradual sensory alteration does not account for the acute episode.
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