The effect of acute haemorrhage in the dog and man on plasma‐renin concentration

Abstract

1. The effect of acute haemorrhage on the plasma renin concentration was studied in the dog and man.2. Plasma-renin concentration was regularly increased after the larger bleeds; after the smaller haemorrhages plasma-renin concentration remained unchanged.3. The results are discussed in relation to current hypotheses concerning the control of renin and aldosterone secretion.