OTHER LABORATORY TESTS. In addition to diagnostic blood tests, other blood tests are used to track the course of AIDS in patients that have already been diagnosed, including blood counts, viral load tests, p24 antigen assays, and measurements of [.beta]2-microglobulin ([.beta]2[.Mu]).
Doctors will use a wide variety of tests to diagnose the presence of opportunistic infections, cancers, or other disease conditions in AIDS patients. Tissue biopsies, samples of cerebrospinal fluid, and sophisticated imaging techniques, such as magnetic resonance imaging (MRI) and computed tomography scans (CT) are used to diagnose AIDS-related cancers, some opportunistic infections, damage to the central nervous system, and wasting of the muscles. Urine and stool samples are used to diagnose infections caused by parasites. AIDS patients are also given blood tests for syphilis and other sexually transmitted diseases.
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