assay - a quantitative or qualitative test of a substance (especially an ore or a drug) to determine its components; frequently used to test for the presence or concentration of infectious agents or antibodies etc.

biopsy - examination of tissues or liquids from the living body to determine the existence or cause of a disease

cloze procedure, cloze test - a test for diagnosing reading ability; words are deleted from a prose passage and the reader is required to fill in the blanks

faecal occult test, fecal occult test, stool test - a take-home test in which you collect specimens of your stool that are tested for traces of blood; used to detect colorectal cancers

GI series - diagnostic tests of the alimentary canal; usually involves inserting a contrast medium (such as barium sulfate) and taking an X-ray

glucose tolerance test - test of the body's ability to metabolize carbohydrates; used in the diagnosis of hypoglycemia and diabetes mellitus

Pap test, Papanicolaou test, smear test - a method of examining stained cells in a cervical smear for early diagnosis of uterine cancer

PKU test - a test of newborn infants for phenylketonuria

Queckenstedt's test - a test to determine whether there is a blockage of the spinal canal

radioactive iodine test - test of thyroid function in which the patient is give an oral does of radioactive iodine-131

Rubin test - test to determine the patency of the Fallopian tubes

skin test - any test to determine immunity or sensitivity to a disease by introducing small amounts on or into the skin

tissue typing - a series of diagnostic tests before an organ transplant to determine whether the tissues of a donor and recipient are compatible

vital capacity - the maximum amount of air that can be exhaled after a maximum inhalation (usually tested with a spirometer); used to determine the condition of lung tissue