This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Medicine
Positive hepatojugular reflux is found in 
Select and explain. 
A. Tricuspid regurgitation, B. Left hea failure, C. Decreased after load, D. decreased capillary bed pressure
A: Tricuspid regurgitation
Answer: A: Tricuspid regurgitation 
Explanation: As is the case for TS, the clinical features of TR result primarily from systemic venous congestion and reduction of CO. With the onset of TR in patients with PA hypeension, symptoms of pulmonary congestion diminish, but the clinical manifestations of right-sided hea failure become intensified. The neck veins are distended with prominent v waves and rapid y descents, marked hepatomegaly, ascites, pleural effusions, edema, systolic pulsations of the liver, and a positive hepatojugular reflex. ref : Harrison&;s principle of internal medicine,20th edition,pg no.1948