305 results found
Medical tests
… 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 … clotting problems. Conditions such as antiphospholipid antibody syndrome or lupus anticoagulant syndrome develop when …
Medical tests
… Test Overview A chemistry screen is a blood test that measures the levels of several substances in the blood (such as electrolytes ). A chemistry screen tells your … Some chemistry screens look at more substances in the blood than others do. The most complete form of a chemistry …
Medical tests
… Test Overview A d-dimer test is a blood test that measures a substance that is released when a blood clot breaks up. Doctors order the d-dimer test, along … with other lab tests and imaging scans, to help check for blood-clotting problems. A d-dimer test can also be used to …
Medical tests
… It Is Done Results Test Overview The blood supply to your hand normally comes from two arteries: … procedure called the Allen test can be used to find out if blood flow to your hand is normal. This test checks to see if both of these blood vessels are open and working correctly. It may be done …
Medical tests
… will gargle a small amount of salt water and then spit the fluid into a clean cup. This method gives a larger sample … will gargle a small amount of salt water and then spit the fluid into a clean cup. This method gives a larger sample …
Medical tests
… this feeling, focus on breathing slowly. Your pulse and blood pressure may be watched while the tube is being … doctor for evaluation. The capsule will pass out of your body in a bowel movement, usually within a few days. … this feeling, focus on breathing slowly. Your pulse and blood pressure may be watched while the tube is being …
Medical tests
… makes it easier to find problems with increased or abnormal blood flow, such as with some types of cancer or areas of … aids, dentures, jewellery, watches, and hairpins) from your body. These objects may be attracted to the powerful magnet … makes it easier to find problems with increased or abnormal blood flow, such as with some types of cancer or areas of …
Medical tests
… how much human immunodeficiency virus (HIV) is in the blood. The test measures the amount of the genetic material ( RNA ) of HIV in the blood. Viral load is first measured when you are diagnosed … undetectable. This means there is very little virus in your blood. Why It Is Done A viral load test is done to watch for …
Medical tests
… Information Test Overview A parathyroid hormone (PTH) blood test measures the level of parathyroid hormone in the blood. This test is used to help identify … disease. PTH controls calcium and phosphorus levels in the blood. PTH is made by the parathyroid glands , which are …
Medical tests
… measures the amount of the amino acid homocysteine in the blood. Why It Is Done A homocysteine blood test is done to: Help identify vitamin B12 deficiency … to energy. Help determine a cause for otherwise unexplained blood clots. How To Prepare Do not eat or drink anything …
