ocr: Resident and Staff Physician Patiant Education Chart Blood Cell Count Usage in Diagnosis - # - à - - - - 5e A - 1 - As part of a complete exam, blood tests can help your doctor diagnose your disease and assess your overall health. Reprinted with permissionifomResident and: Staff Physician (c)1991-92, 19931 by Romaine Pierson Publishers, Inc.