Which of the following indicators best reflects the weakening of myocardial contractility in heart failure________
A. Decreased cardiac output
B. Decreased cardiac index
C. Decreased ejection fraction
D. Increased pulmonary arterial pressure
Answer:C
Which of the following indicators best reflects the weakening of myocardial contractility in heart failure________
A. Decreased cardiac output B. Decreased cardiac index C. Decreased ejection fraction D. Increased pulmonary arterial pressure