In biventricular heart failure, which statement is true?
The ventricles take turns pumping. When one side stops pumping, the other takes over.
Only the left ventricle is affected
The ejection fraction is typically above 50%
Both ventricles are affected, and the ejection fraction can be extremely low.
The Correct Answer is D
A. The ventricles work simultaneously, not alternately, and both failing leads to compromised cardiac output.
B. Biventricular heart failure involves both the left and right ventricles, not just the left.
C. An ejection fraction above 50% is considered normal; in heart failure, especially biventricular, it is often reduced.
D. Biventricular heart failure means both ventricles are impaired, often resulting in a significantly reduced ejection fraction and poor cardiac function.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Distended abdomen is more commonly associated with right-sided heart failure due to liver congestion and ascites.
B. Anorexia can be a nonspecific symptom and is not a primary indicator of left-sided heart failure.
C. Weight gain and edema in both legs are typical signs of right-sided heart failure, caused by systemic venous congestion.
D. Breathlessness (dyspnea) accompanied by crackles and wheezes indicates pulmonary congestion and fluid buildup, which are classic signs of left-sided heart failure where the heart fails to effectively pump blood out to the body, causing fluid to back up into the lungs.
Correct Answer is B
Explanation
A. Dependent edema is more commonly seen in right-sided heart failure due to systemic venous congestion.
B. A hacking cough, especially at night or when lying down, is a common symptom of left-sided heart failure caused by pulmonary congestion.
C. Abdominal distension is typically related to right-sided heart failure causing liver congestion and ascites.
D. Jugular venous distention is a sign of right-sided heart failure.
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