A patient with chronic mitral regurgitation states, "I am always so tired." Which factor should the nurse identify as contributing to this patient's fatigue?
a. Coughing
b. Heart murmur
c. Pulmonary congestion
d. Decreased cardiac output
ANS: D
Decreased cardiac output causes fatigue due to less oxygen being provided to the tissues. A. B. C. The patient is not experiencing fatigue because of coughing, a heart murmur, or pulmonary congestion.
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