329 results found
Medical tests
… Fetal ultrasound is a test done during pregnancy that uses reflected sound waves. It produces a picture of the baby (fetus), the organ that supports the fetus ( placenta ), and the liquid that … also includes blood tests that measure the levels of two substances that may be related to birth defects. Why It Is …
Medical tests
… Overview Overview A complement test uses a blood sample to detect a group of proteins that help the body attack foreign substances. When there are a lot of foreign substances in the body, such as bacteria or viruses, a low …
Medical tests
… Information Test Overview Chlamydia tests use a sample of body fluid or urine to see whether chlamydia … an infection. Nucleic acid amplification tests (NAAT) are used to find chlamydia infection. These tests use a sample … infections: Chlamydia and LGV: Key information and resources. Government of Canada. …
Medical tests
… in the blood to help identify some diseases. Proteins are substances made up of smaller building blocks called amino … in an electrical field. Serum protein electrophoresis uses an electrical field to separate the proteins in the … albumin and globulin. Both albumin and globulin carry substances through the bloodstream. Using protein …
Medical tests
… involves having a skin or blood test to find out what substance, or allergen , may trigger an allergic response in a person. Skin tests are usually done because they are rapid, reliable, and generally less expensive … the skin. An intradermal allergy test may be done when a substance does not cause a reaction in the skin prick test …
Medical tests
… also known as antibodies , in your blood. Antibodies are substances made by the body's immune system in response to bacteria, viruses, fungus, animal dander, or cancer cells. Antibodies attach to the foreign substances so the immune system can destroy them. Antibodies …
Medical tests
… Overview A d-dimer test is a blood test that measures a substance that is released when a blood clot breaks up. … for blood-clotting problems. A d-dimer test can also be used to check how well a treatment is working. Why It Is … d-dimer test result means that there is very little of the substance that's released as a blood clot breaks up. Having …
Medical tests
… A (Hex A) in the blood. Hex A breaks down fatty substances in the brain and nerves. Tay-Sachs is an … inherited disease in which the body can't break down fatty substances as it should, so the fatty substances collect in … the results may mean. How It Is Done A health professional uses a needle to take a blood sample, usually from the arm. …
Medical tests
… Information Test Overview Helicobacter pylori tests are used to detect a Helicobacter pylori ( H. pylori ) infection … . Stool antigen test. A stool antigen test checks to see if substances that trigger the immune system to fight an H. … . Stool antigen test. A stool antigen test checks to see if substances that trigger the immune system to fight an H. …
Medical tests
… The following types of dental X-rays are commonly used. The X-rays use small amounts of radiation. Bitewing. These X-rays show … and lower back teeth in a single view. These X-rays are used to check for decay between the teeth and to show how …
