Physiology General 04223c4d All except one results in increased secretion of Renin A Renal ischaemia B Decreased amount of Na+ in DCT C Decreased amount of Na+ in PCT D Narrowing of afferent arterioles High-Yield Explanation Renin release is stimulated by Reduced Na+ in macula densa in distal tubule. Decreased GFR- Renal ischemia, afferent arteriolar constriction.