blood analysisBlood analysis, in which the physical and chemical properties of a sample of blood are examined, is important for the accurate diagnosis of disease.
diagnosis, Identification of a disease or disorder. Diagnosis requires a medical history (including family history), a physical examination, and usually tests and diagnostic procedures (e.g., blood analysis, diagnostic imaging). A list of possible causes—the differential diagnosis—is developed and then narrowed down by further tests that eliminate or support specific possibilities.