A client brought to the emergency room following a myocardial infarction is found to be hypotensive. What effect from baroreceptor stimulation on this client's heart rate would be expected?
A. The heart rate would increase.
B. The heart rate would decrease.
C. There would be no effect on heart rate.
D. The heart rate would vacillate between accelerations and deceleration.
A
When a client experiences hypotension, baroreceptors in the aortic arch sense a pressure decrease in the vessels. The parasympathetic system responds by lessening the inhibitory effect on the SA node, and this results in an increase in heart rate.
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