[Code of Federal Regulations] [Title 21, Volume 8] [Revised as of April 1, 2008] From the U.S. Government Printing Office via GPO Access [CITE: 21CFR862.1225] [Page 200] TITLE 21--FOOD AND DRUGS CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) PART 862_CLINICAL CHEMISTRY AND CLINICAL TOXICOLOGY DEVICES-- Table of Contents Subpart B_Clinical Chemistry Test Systems Sec. 862.1225 Creatinine test system. (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.