Creatinine, CSF

Diagnostic Use

Creatinine is a waste product produced by skeletal muscle tissue. Creatinine is usually measured in the plasma as a biomarker of renal function.

It is very rarely necessary to measure creatinine in CSF. CSF creatinine measurement may be considered in the diagnosis of guanidinoacetate methyltransferase (GAMT) deficiency, although the measurement of the urine creatine/creatinine ratio is preferred for this purpose.


Core Biochemistry

Delphic Registration Code



CSF creatinine

Turnaround Time

3 hours

Test Code