This test looks at the human leukocyte antigens (HLAs) in your blood. It helps match donors and recipients for stem cell and organ transplants.

This test looks for a certain antibody made by your immune system. The test is done if you need an organ transplant.

This test measures the amount of HIV in your blood. HIV causes AIDS, and this test is used to see how well your HIV treatment is working.

This test looks for HIV infection in your blood or saliva. It can give you results in about 20 minutes.

This blood test looks at the genetic makeup of a strain of HIV, the virus that causes AIDS. The test can be useful in planning your treatment for HIV.

Fetal hemoglobin is one of many types of hemoglobin in the blood. High levels may mean you have thalassemia, myeloid leukemia, or sickle cell anemia.

This test can find out whether you have hemoglobin C disease, a blood disorder. Hemoglobin C causes hemolytic anemia, which is similar to sickle cell disease.

This blood test screens for the herpes simplex virus. You may need this test if you believe you may have herpes, but you don't have an active infection.

This is a tissue test to check for the protein HER2/neu. This protein is present in higher numbers in some breast cancers.

This test is used to find out if you are infected with Helicobacter pylori bacteria.