329 results found
Medical tests
… Test On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … of ferritin in the blood shows how much iron is stored in your body. Why It Is Done A ferritin blood test is done to: … to raise or lower the iron level is working. How To Prepare In general, there's nothing you have to do before this …
Medical tests
… Test On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … found in blood and lymph fluid. Sodium levels in the body are partly controlled by a hormone called aldosterone, which … Small amounts of sodium are also lost through the skin when you sweat. Most foods have sodium naturally in them or as an …
Medical tests
… Test On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … or play with children who have lead poisoning. How To Prepare In general, there's nothing you have to do before this test, unless your doctor tells …
Medical tests
… On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … testing for infertility . Check an injury to the genital area. How To Prepare In general, there's nothing you have to do before this test, unless your doctor tells …
Medical tests
… Test On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … and dopamine in the blood. These catecholamines are made by nerve tissue , the brain, and the adrenal glands … measures catecholamine levels over 24 hours. How To Prepare You may be asked to avoid certain foods and fluids for 2 to …
Medical tests
… On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … can cause an infection. A sample of cells from the back of your throat is added to a substance that promotes the growth … using a microscope or chemical tests. Sometimes other tests are done to find the right medicine for treating the …
Medical tests
… Test On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … usually affected by the amount of folate and folic acid in your diet each day. Folate deficiency can result in a type … is high enough to prevent certain birth defects. How To Prepare Do not eat or drink (other than water) for 8 to 10 hours …
Medical tests
… Test On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … bleeding in the brain, and some types of cancer. How To Prepare In general, there's nothing you have to do before this test, unless your doctor tells …
Medical tests
… Test On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … of antibodies called cold agglutinins. Cold agglutinins are normally made by the immune system in response to … blood test. How To Prepare In general, there's nothing you have to do before this test, unless your doctor tells …
Medical tests
… Test On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Related … called alpha, beta, and gamma types. Some globulins are made by the liver, while others are made by the immune … how well the liver and kidneys are working. Find out if your diet contains enough protein. Help find the cause of …
