Renal blood flow in isolated kidneys measured with an electromagnetic flowmeter and by xenon-133 and krypton-85 wash-out techniques

By use of an electromagnetic flowmeter and the inert gas desaturation method 43 comparative measurements of the blood flow were performed in 6 isolated dog kidneys. For the measurements by use of the latter method krypton-85 and xenon-133 were employed, for a fast, and respectively, a slow injection of the indicator into the renal artery. Calculation of the blood flow from the wash-out curves was made by use of the formulas advanced by Kety (1951) and by Zierler (1965).