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Medical tests
… Ammonia Test On this page: Test Overview Why It Is Done How To … An ammonia test measures the amount of ammonia in the blood. Most ammonia in the body forms when protein is broken … , which is then eliminated in urine. Ammonia levels in the blood rise when the liver is not able to convert ammonia to …
Medical tests
… Gastrin Test On this page: Test Overview Why It Is Done How To … test measures the level of the hormone gastrin in the blood. Gastrin is produced by cells, called G cells, in the … the stomach, G cells trigger the release of gastrin in the blood. As blood levels of gastrin rise, the stomach releases …
Medical tests
… Folate Test On this page: Test Overview Why It Is Done How To … Overview A folate test measures the amount of folate in the blood. Folate is one of many B vitamins. The body needs folate for normal growth and to make red blood cells (RBC) , white blood cells (WBC) , and platelets …
Medical tests
… Ferritin Test On this page: Test Overview Why It Is Done How To … Risks Results Test Overview A ferritin blood test checks the amount of ferritin in the blood. Ferritin is a protein in the body that binds to iron; …
Medical tests
… DHEA-S Test On this page: Test Overview Why It Is Done How To … . A test for DHEA-S checks the level of this hormone in the blood. Testosterone affects sexual features and development. … except water for 9 to 12 hours before you have your blood drawn. In most cases, you are allowed to take your …
Medical tests
… Toxoplasmosis Test On this page: Test Overview Why It Is Done How To … Test Overview A toxoplasmosis test is a blood test that checks for antibodies to the Toxoplasma … infection is recent or occurred in the past. More than one blood test may be done over several weeks. For most people, …
Medical tests
… Viral Tests On this page: Test Overview Why It Is Done How To … types of samples are used for a viral test. They include blood, urine, stool (feces), organ tissue, spinal fluid, and … is accidentally stuck with a needle containing contaminated blood to see if they became infected with the virus. Find a …
Medical tests
… Herpes Tests On this page: Test Overview Health Tools Why It Is … be done using other types of samples, such as spinal fluid, blood, urine, or tears. Blood testing can be done to find out if you have been …
Medical tests
… Rubella Test On this page: Test Overview Why It Is Done How To … Risks Results Test Overview A rubella blood test detects antibodies that are made by the immune … help kill the rubella virus. These antibodies remain in the bloodstream for years. The presence of certain antibodies …
Medical tests
… Estrogen Test On this page: Test Overview Health Tools Why It Is Done … the level of the most important estrogen hormones in a blood or urine sample. It measures estradiol, estriol, and … non-pregnant women. The amount of estradiol in a woman's blood varies throughout her menstrual cycle . After …
