While collecting data on a patient with aortic stenosis the nurse monitors for signs of heart failure. What is the nurse monitoring for heart failure as a complication of aortic stenosis?
a. Cardiac workload is increased from reduced cardiac output.
b. Cardiac workload is decreased from reduced cardiac output.
c. Cardiac workload is increased from increased cardiac output.
d. Cardiac workload is decreased from increased cardiac output.
ANS: A
Cardiac workload is increased from reduced cardiac output. With increased narrowing of the aortic valve opening, the compensatory mechanisms are unable to continue, and the left ventricle fails to move blood forward. This results in decreased cardiac output and heart failure. B. The cardiac workload in aortic stenosis is not decreased. C. In aortic stenosis, the cardiac workload is not increased because of increased cardiac output. D. In aortic stenosis, the cardiac workload is not decreased because of an increase in cardiac output.
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