USMLE (United States Medical Licensing Examination) Step 1 Practice Exam

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What condition is indicated by decreased cardiac output due to impaired ventricular filling during diastole?

Diastolic heart failure

This condition is known as Diastolic Heart Failure. The other options do not accurately describe decreased cardiac output due to impaired ventricular filling during diastole. Systolic Heart Failure is caused by impaired contraction during the systolic phase of the cardiac cycle, while Patent Ductus Arteriosus is a congenital heart defect that involves a persistent opening between the aorta and pulmonary artery. Mitral Regurgitation is the backflow of blood from the left ventricle to the left atrium, and while it can result in decreased cardiac output, it is not specifically due to impaired ventricular filling during diastole.

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Systolic heart failure

Patent ductus arteriosus

Mitral regurgitation

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