[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: 21CFR862.1210] [Page 199-200] 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. 862.1210 Creatine test system. (a) Identification. A creatine test system is a device intended to measure creatine (a substance synthesized in the liver and pancreas and found in biological fluids) in plasma, serum, and urine. Measurements of creatine are used in the diagnosis and treatment of muscle diseases and endocrine disorders including hyperthyroidism. (b) Classification. Class I (general controls). The device is exempt from the premarket notification procedures in [[Page 200]] subpart E of part 807 of this chapter subject to the limitations in Sec. 862.9. [52 FR 16122, May 1, 1987, as amended at 53 FR 21449, June 8, 1988; 66 FR 38787, July 25, 2001]