[Code of Federal Regulations] [Title 21, Volume 8] [Revised as of April 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 21CFR864.5300] [Page 228] TITLE 21--FOOD AND DRUGS CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) PART 864--HEMATOLOGY AND PATHOLOGY DEVICES--Table of Contents Subpart F--Automated and Semi-Automated Hematology Devices Sec. 864.5300 Red cell indices device. (a) Identification. A red cell indices device, usually part of a larger system, calculates or directly measures the erythrocyte mean corpuscular volume (MCV), the mean corpuscular hemoglobin (MCH), and the mean corpuscular hemoglobin concentration (MCHC). The red cell indices are used for the differential diagnosis of anemias. (b) Classification. Class II (performance standards). [45 FR 60597, Sept. 12, 1980]