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MCQ 23: Tricuspid regurgitation (33)

Q. Most common cause of tricuspid regurgitation is?
A. Rheumatic heart disease
B. Infective endocarditis
C. Ebstein's anomaly
D. Functional

Answer: D. Functional

Explanation:
Functional TR due to right ventricular dilatation is most common cause of TR. RV dilatation commonly coexists with left sided cardiac pathologies.
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