Which of the following sets lists the causes of diastolic flow disturbances?

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Multiple Choice

Which of the following sets lists the causes of diastolic flow disturbances?

Diastolic flow disturbances occur when flow during diastole is abnormal, either because blood leaks backward through a valve (regurgitation) or because filling into the ventricle is obstructed by a stenotic valve. Aortic regurgitation and pulmonary regurgitation both produce diastolic backward flow into the ventricles, creating diastolic Doppler abnormalities. At the same time, mitral stenosis and tricuspid stenosis impede diastolic filling, also leading to abnormal diastolic flow patterns. Lesions that affect systole, like aortic or pulmonary stenosis, or regurgitation that occurs mainly in systole, do not cause diastolic flow disturbances. So the set that includes AR, PR, and both mitral and tricuspid stenosis correctly represents the causes of diastolic flow disturbances.

Diastolic flow disturbances occur when flow during diastole is abnormal, either because blood leaks backward through a valve (regurgitation) or because filling into the ventricle is obstructed by a stenotic valve. Aortic regurgitation and pulmonary regurgitation both produce diastolic backward flow into the ventricles, creating diastolic Doppler abnormalities. At the same time, mitral stenosis and tricuspid stenosis impede diastolic filling, also leading to abnormal diastolic flow patterns. Lesions that affect systole, like aortic or pulmonary stenosis, or regurgitation that occurs mainly in systole, do not cause diastolic flow disturbances. So the set that includes AR, PR, and both mitral and tricuspid stenosis correctly represents the causes of diastolic flow disturbances.

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