Question

The murmur of tricuspid regurgitation is best described as a:

A. Holodiastolic murmur heard best at the lower left sternal border
B. Pansystolic murmur heard best at the lower left sterna border
C. Pansystolic murmur heard best at the cardiac apex with radiation to the axilla
D. Systolic ejection murmur heard best at the upper right sterna border

Answer 1

The murmur of tricuspid regurgitation is a pansystolic murmur best heard at the lower left sternal border, occurring during the entire systole when the tricuspid valve fails to close properly.

Step-by-step explanation:

The murmur of tricuspid regurgitation is best described as a pansystolic murmur heard best at the lower left sternal border. This type of murmur occurs throughout the systole, as blood flows back through the tricuspid valve from the right ventricle to the right atrium. This regurgitation causes a murmur that can be heard using a stethoscope and is indicative of a valve that does not close properly during the contraction phase of the cardiac cycle.