Reference ranges for blood tests

Reference ranges (reference intervals) for blood tests are sets of values used by a health professional to interpret a set of medical test results from blood samples. Reference ranges for blood tests are studied within the field of clinical chemistry (also known as "clinical biochemistry", "chemical pathology" or "pure blood chemistry"), the area of pathology that is generally concerned with analysis of bodily fluids.^{[citation needed]}

Blood test results should always be interpreted using the reference range provided by the laboratory that performed the test.^[1]