Abstract
Renal blood distribution on dogs was measured using with a new 5 channel hydeogen gas edectrode. A few results were obtained as follows. 1) Cortical blood distribution devided into 4 zones and medullary blood distribution were measured simultanously. Renal blood flow in secound zone to the outest zone in renal cortex were the highest, the values of them were 1.71±0.39 ml/min⋅g and revealed good agreement with flow rate measured using with magnetic flow meter. 2) The medullary flow was 0.31±0.11 ml/min⋅g, and they were dependent on urine flow. The hydrogen clearance of renal medulla inereased followed by the increase of urine flow. 3) Desaturation times after the stop of hydrogen gas administration had a close relation to local blood flow rate. Desaturation of C-2, in which measured the highest blood flow, appeared first, and the medullary desaturation delayed most of all.
