Poal hypeension is defined as hepatic venous pressure gradient more than:: (A) 1 mm Hg, (B) 5 mm Hg, (C) 10 mm Hg, (D) 20 mm Hg
Answer is B. Poal hypeension is defined as the elevation of the hepatic venous pressure gradient (HVPG) to >5 mmHg. Poal hypeension is caused by a combination of two simultaneously occurring hemodynamic processes. Ref: Harrison's principle of internal medicine 17th edition, chapter 302.