329 results found
Medical tests
… Amniocentesis is a test to look at the fluid that surrounds your baby ( fetus ) in the uterus . Amniotic fluid has cells and other substances that can give clues about the health of your … weeks 15 and 20 to look at the baby's genes. It can also be used later in pregnancy. Amniocentesis for genetic testing …
Medical tests
… helps carry certain hormones that regulate the way the body uses energy and other substances through the blood. When prealbumin levels are … normal, it may be a sign of a poor diet (malnutrition). Your doctor may use the results of this test to make changes …
Medical tests
… diseases measure the amount of certain antibodies in your blood. Your body makes antibodies to attack and destroy substances such as bacteria and viruses. But in autoimmune diseases, the antibodies attack and …
Medical tests
… Overview A renin assay blood test is done to find the cause of high blood pressure (hypertension) . Renin is an … (a hormone made by the adrenal glands ) and several other substances to help balance sodium and potassium levels in the blood and fluid levels in the body, which affects your blood pressure. A renin test is often done at the same …
Medical tests
… Test Overview A swallowing study is a test that shows what your throat and esophagus do while you swallow. The test uses X-rays in real time (fluoroscopy) and records what … a swallowing study, you will swallow liquid mixed with a substance called barium. Or you might swallow solid foods …
Medical tests
… for growth. It plays an important role in how the body uses food for energy ( metabolism ). The amount of GH in the … acromegaly ). Growth hormone can cause the release of other substances (factors) that affect growth and metabolism. One … there's nothing you have to do before this test, unless your doctor tells you to. How It Is Done Blood levels of …
Medical tests
… vessels. Albumin also helps carry some medicines and other substances through the blood and is important for tissue … how well the liver and kidneys are working. Find out if your diet contains enough protein. Help find the cause of swelling of the ankles or belly or of fluid …
Medical tests
… Overview A tissue type test is a blood test that identifies substances called antigens on the surface of body cells and … if a person has a chance of getting certain diseases that cause the body to attack its own cells, such as autoimmune … there's nothing you have to do before this test, unless your doctor tells you to. If you are donating tissue or …
Medical tests
… to find germs (such as bacteria or a fungus) that can cause an infection. A bacterial infection in the blood, called … as corticosteroids or chemotherapy ) that change how well your body can fight infections (immunity). For a blood culture, a sample of blood is added to a substance that promotes the growth of germs. The type of …
Medical tests
… Test Overview Neuropsychological testing can help your doctor find out how a problem with your brain is … reason, concentrate, solve problems, or remember. Doctors use a wide variety of tests for neuropsychological testing. … or a more serious brain injury. You have a history of substance use disorder that may have affected your brain. …
