The nurse supervising a patient who had an MI and is now active in a cardiac rehabilitation program teaches him to self-monitor his activity and to stop exercising if he experiences:
A) Chest pain, palpitations, or dyspnea
B) An increase in systolic or diastolic blood pressure greater than 20 mm HG
C) Oxygen saturation at 94%
D) An increase in respiratory rate of 30 breaths/min
Ans: A
Feedback: Any activity or exercise that causes dyspnea and chest pain should be stopped in the patient with CAD. Heart rate rather than respiratory rate determines the parameters for exercise. An increase in BP more than 20 mm Hg and ST-segment ECK changes also indicate it is time to stop exercising, but cannot be self-monitored.
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