Labels:text | screenshot | font | diagram | line OCR: Resident and Staff Physician Patient Education Chart Blood Sample After Separation Plasma White blood cells Red blood cells Reprinted with permission from Resident and Staff Physician (c) 1991-92, 1993 by Romaine Pierson Publishers, Inc. A complete blood count measures the number and type of cells present in a blood sample and is useful in diagnosing anemia and other disorders.