Evaluation of the performance of common kits for the measurement of creatinine in serum and urine: are the results of these methods suitable for clinical use?

ABSTRACT

Background: Measuring serum and urine creatinine level is currently the most common method for assessing renal function. For this purpose, Jaffe's method is most commonly used. The inconsistency in the results obtained from one single sample may be due to poor quality of the measurement method, inappropriate calibration, or improper use of the measurement method by the laboratory