329 results found
Medical tests
… Test Overview A breath alcohol test is an estimate of your blood alcohol concentration (BAC). The test measures … in the air that you breathe out (exhale). You can measure your own breath alcohol level with a simple hand-held … directions, it can provide an accurate estimate of your blood alcohol level. There are different types of …
Medical tests
… more study or printed out as photographs. Why It Is Done Your doctor may want you to have a coronary calcium scan if … clear about whether you should start treatment to reduce your risk of coronary artery disease. footnote 1 A coronary … or drink anything that has caffeine for a few hours before your test. Tell your doctor if you get nervous in tight …
Medical tests
… urea nitrogen (BUN) test measures the amount of nitrogen in your blood that comes from the waste product urea. Urea is made when protein is broken down in your body. Urea is made in the liver and passed out of your body in the urine. A BUN test is done to see how well …
Medical tests
… Test Overview The blood supply to your hand normally comes from two arteries: the radial … 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 … How It Is Done For the Allen test, you will likely rest your hand on a table or towel and make a fist. The health …
Medical tests
… plaque is done using a product that stains the plaque on your teeth. Dental plaque is a sticky film of bacteria that sticks to your teeth, the spaces between the teeth, and under your gums. It can harden into tartar. The stain lets you to …
Medical tests
… (say "kat-uh-KOH-luh-meens") are hormones made mostly by your adrenal glands as a reaction to stress. When you feel … organs, such as the brain, heart, and kidneys. This helps your body prepare for "fight-or-flight" reactions. Your body breaks down these hormones and passes them into …
Medical tests
… and the amount of potassium you eat. The hormone levels in your body, severe vomiting, and taking certain medicines … diet has enough potassium for the body's needs. But if your levels get low, it can take some time for your body to start holding on to potassium. A potassium …
Medical tests
… location of the abnormal area. Fine needle breast biopsy. Your doctor inserts a thin needle into a lump or abnormal … and removes a sample of cells or fluid. Core needle biopsy. Your doctor makes a small cut in the skin and inserts a … usually placed at the biopsy site. Open (surgical) biopsy. Your doctor will make a cut in the breast to remove an area …
Medical tests
… Why It Is Done You may need a prostate biopsy if your doctor found something of concern in your lab work or during your examination. A biopsy can help find out if you have …
Medical tests
… genes called BRCA1 and BRCA2. This test can help you know your chance of getting breast cancer and ovarian cancer . A … cancers. You can inherit the gene changes from either your mother's or father's side of the family. BRCA gene changes aren't common. Your doctor may talk to you about testing based on your …
