Creatinine, Plasma

Diagnostic Use

Creatinine is a waste product produced by skeletal muscle tissue. Creatinine is produced at a constant rate (dependent upon muscle mass) and is freely filtered at the glomerulus (with a small fraction of creatinine being excreted in the distal nephron). Because of these properties, creatinine is a useful biomarker of glomerular filtration.

Creatinine is the most commonly requested biomarker of renal function.


Core Biochemistry

Delphic Registration Code



CRN, plasma

Turnaround Time

3 hours

Test Code