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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Cor pulmonale causes right-sided heart failure, leading to systemic venous congestion and dependent edema.
B. Chest pain is more commonly associated with left-sided heart issues or coronary artery disease.
C. Crackles in the lungs are signs of left-sided heart failure due to pulmonary congestion.
D. Hypotension is not a typical early sign of cor pulmonale or right-sided heart failure.
Correct Answer is A
Explanation
A. A decrease in Glasgow Coma Scale (GCS) score from 13 to 9 indicates worsening neurological status and possible deterioration, which requires immediate medical evaluation.
B. Pupils that are equal, round, and reactive are normal findings and not a concern.
C. A mild drop in heart rate from 76 to 70 bpm is within normal limits and not immediately concerning.
D. Repeated requests for narcotic pain medications may warrant assessment for pain or misuse but do not require immediate reporting compared to a significant GCS change.
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