Fig. 2From: The kinetic glomerular filtration rate is not interchangeable with measured creatinine clearance for prediction of piperacillin underexposure in critically ill patients with augmented renal clearanceReceiver operating characteristics (ROC) curves evaluating the ability of KeGFR and measured CrCL to predict piperacillin underdosing. Areas under ROC curves between KeGFR and measured CrCL were compared using the Handley approach. Piperacillin underdosing was defined by a free drug concentration ≤ 32 μg/mlBack to article page