Table 2.

Changes in hemodynamic parameters following hemorrhage

	Post-hemorrhage (min)
Parameter	0	5	10	15	20
ΔHR (%)	−16 ± 3*	−20 ± 4*	−21 ± 2*	−20 ± 2*	−20 ± 3*
ΔMAP (%)	−69 ± 2*	−63 ± 4*	−56 ± 3*	−60 ± 4*	−60 ± 3*
ΔHQR (%)	−38 ± 5*	−30 ± 9*	−23 ± 10*	−32 ± 5*	−32 ± 6*
ΔRR (%)	−24 ± 10	−5 ± 12	−7 ± 8	−21 ± 10	−17 ± 10
ΔMR (%)	−16 ± 9	−10 ± 7	+2 ± 12	+4 ± 10	+17 ± 20

The data are presented as mean ± SEM.

HR = heart rate. MAP = mean arterial blood pressure. HQR = hindquarter vascular resistance. RR = renal vascular resistance. MR = mesenteric vascular resistance.

^*P < 0.05, significant change form pre-values. Note that the values recorded between 15-45 min were similar to those recorded at 5 min (P > 0.05, for all comparisons).