Normothemic kidney perfusion provides comprehensive data on renal function. (A) Data on kidney weight, perfusion time, time-averaged arterial blood flow, arterial Na⁺, creatinine clearance, and arterial Hb. (B) Analysis of arterial and venous gases. (C) Time course of blood flow for first 6 hours of perfusion. (D) Time course of arterial pH for first 6 hours of perfusion. (E) Renal respiration calculated from blood gases.