A patient's heart rate increased from 80 bpm to 160 bpm.The nurse knows that what will follow is a(n)
A) Increase in diastolic filling time.
B) Decrease in cardiac output.
C) Increase in stroke volume.
D) Increase in contractility.

Question

Quizplus · Accepted Answer

An increased heart rate would decrease the diastolic filling time and stroke volume,thus decreasing overall cardiac output.A decrease in cardiac output results from decreased stroke volume and/or decreased heart rate.An increase in stroke volume and contractility would cause a decrease in heart rate to maintain cardiac output.

A Patient's Heart Rate Increased from 80 Bpm to 160