U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
(a) Identification. A creatinine test system is a device intended to measure creatinine levels in plasma and urine. Creatinine measurements are used in the diagnosis and treatment of renal diseases, in monitoring renal dialysis, and as a calculation basis for measuring other urine analytes.
(b) Classification. Class II.