Which causes raised angiotensin in blood -a) Increased blood volumeb) Raised cardiac outputc) Decreased blood pressured) Increased sympathetic tone: (A) ab, (B) bc, (C) cd, (D) ac
Answer is C. Function of Renin is to convert Angiotensinogen to Angiotensin I. So whenever Renin secretion is increased, Angiotensin I level also increases. Factors which reduce GFR or reduce Na+ delivery to distal tubule causes Renin secretion. Reduced BP or increased sympathetic tone reduces GFR.