this reduction in blood volume increased the plasma vasopressin concentration from a prehemorrhage value of 4.3 +/- 0.5 to 12.5 +/- 3.4 microu/ml ( p less than 0.01 ) in the 15-min period immediately after hemorrhage and to 8.1 +/- 1.4 microu/ml ( p less than 0.01 ) in the 45- to 60-min period after hemorrhage .
C0019080
hemorrhage
C0025874
period