328 results found
Medical tests
… Human Immunodeficiency Virus (HIV) Test On this page: Test Overview Why It Is Done How To … , or the genetic material ( DNA or RNA ) of HIV in the blood or another type of sample. This can show if an HIV infection is present (HIV-positive). HIV infects white blood cells called CD4+ cells. They are part of the body's …
Medical tests
… Partial Thromboplastin Time (PTT) Test On this page: Test Overview Why It Is Done How To … Test Overview Partial thromboplastin time (PTT) is a blood test that measures the time it takes your blood to clot. A PTT test can be used to check for bleeding …
Medical tests
… Prostate-Specific Antigen (PSA) Test On this page: Test Overview Why It Is Done How To … measures the amount of prostate-specific antigen in the blood. PSA is released into the blood by the prostate , which is part of the male …
Medical tests
… Serum Protein Electrophoresis (SPEP) Test On this page: Test Overview Why It Is Done How To … (SPEP) test measures specific proteins in the blood to help identify some diseases. Proteins are … uses an electrical field to separate the proteins in the blood serum into groups of similar size, shape, and charge. …
Medical tests
… Brain Natriuretic Peptide (BNP) Test On this page: Test Overview Why It Is Done How To … (BNP) test measures the amount of the BNP hormone in your blood. BNP is made by your heart and shows how well your … Normally, only a low amount of BNP is found in your blood. But if your heart has to work harder than usual over …
Medical tests
… Follicle-Stimulating Hormone (FSH) Test On this page: Test Overview Why It Is Done How To … the amount of follicle-stimulating hormone (FSH) in a blood sample. FSH is produced by the pituitary gland . In … It Is Done A health professional uses a needle to take a blood sample, usually from an arm. For a woman who is having …
Medical tests
… Breast Cancer (BRCA) Gene Test On this page: Test Overview Why It Is Done How To … Test Overview A breast cancer (BRCA) gene test is a blood test to check for changes (mutations) in genes called … It Is Done A health professional uses a needle to take a blood sample, usually from the arm. How It Feels When a …
Medical tests
… Thyroid-Stimulating Hormone (TSH) Test On this page: Test Overview Why It Is Done How To … Test Overview A thyroid-stimulating hormone (TSH) blood test is used to check for thyroid gland problems. TSH … It Is Done A health professional uses a needle to take a blood sample, usually from the arm. How long the test takes …
Medical tests
… Lactic Acid Dehydrogenase (LDH) Test On this page: Test Overview Why It Is Done How To … to cell damage. LDH levels are measured from a sample of blood taken from a vein. Why It Is Done LDH levels help find … It Is done A health professional uses a needle to take a blood sample, usually from the arm. How long the test takes …
Medical tests
… Human Papillomavirus (HPV) Test of the Cervix On this page: Test Overview Health Tools Why It Is Done How To Prepare How … It Is Done How It Feels Risks Results Test Overview A human papillomavirus (HPV) test is done to …
