[Comparison of inulin and creatinine clearance determinations in anesthesized and conscious rats].

Two investigation methods of the renal function by means of the inulin and the endogenous creatinine clearance in narcotized and conscious rats are described in detail. The inulin clearance was 0.84 +/- 0.16 ml/min/100 g BW. The results of the creatinine clearance obtained by 6 various methods are widely different due to co-determination of foreign chromogens. Therefore, it is important to compare these results with the results of other analytical methods determining only the "true" creatinine.