We are glad to inform you about our new method of Creatinine-Enzymatic test for measurements of creatinine in serum, plasma and urine (according to procedure described in the insert). This method is an alternative one, widely adopted by routine clinical laboratories, because it has been reported to have less interference than the Jaffe methods and it's recommended by the NKEDP (National Kidney Disease Education Program). Creatinine is a catabolic end product of creatine (or phosphocreatine). The amount produced each day is related to the muscle mass. Creatinine is freely filtered by the glomerulus (small amounts are reabsorbed and are also secreted by the renal tubules). Creatinine measurement is used almost exclusively in the assessment of kidney function (impaired renal perfusion, loss of functioning nephrons) and in the monitoring of renal dialysis. We hope this new BioSystems product helps to meet your needs.