Table 2.

Percentage change in regional blood volume relative to normothermia for both heat stress and colloid infusion conditions prior to LBNP

	Change in blood volume between normothermic and heat stressed conditions	Change in blood volume between normothermic and heat stress plus colloid infusion conditions
Torso	−11.9 ± 5.0%*	0.7 ± 3.4%
Heart	−9.3 ± 4.0%*	0.5 ± 4.1%
Left lung	−6.7 ± 7.8%	3.9 ± 5.3%
Right lung	−14.5 ± 9.7%*	3.8 ± 9.6%
Liver	−16.1 ± 8.7%*	4.4 ± 8.3%
Spleen	−13.8 ± 9.1%*	−1.9 ± 7.0%

^*The reduction in the index of blood volume within the specified region of interest was greater relative to normothermia (P < 0.05). There were no differences in the indices of regional blood volume between normothermia and colloid infusion states.