[Evaluation of creatinine clearance in pediatric patients, excluding determination of creatininuria]

Abstract

Here is presented a practical method for predicting creatinine clearance for pediatric patients from serum creatinine concentration and patients age without collection 24 h urine. Creatinine excretion rate (ER) can be predicted from the patients age, in years, by the formula: ER = (0.0463 x age) + 0.4049. Creatinine clearance can be predicted using the predicted excretion rate and serum creatinine concentration. There was a correlation (r = 0.66) between predicted and observed creatinine clearance in 101 subjects. This method allows renal function to be rapidly estimated.