Blood Volume in Sympathectomized-Splenectomized Dogs. ∗

Abstract

Summary

With the use of Cr³¹ and T-1824, cell and plasma volumes are measured in sympathectomized - splenectomized dogs. Average cell volume, plasma volume, and blood volume are 32.2 ml/kg, 54.8 ml/kg. and 87.0 ml/kg respectively for the male dogs; and 30.2 ml/kg, 52.5 ml/kg, and 82.7 ml/kg respectively for the females. These sex differences are not statistically significant. A comparison between sympathectomized-splenectomized dogs and splenectomized dogs shows higher cell and blood volumes (significant at the 5% level) for the former group. Analysis of variance demonstrates significant individual differences in blood volume among the male sympathectomized-splenectomized dogs. The F_cells factor shows neither significant individual difference nor sex difference, and is unchanged by sympathectomy.