329 results found
Medical tests
… Uric Acid in Urine Test On this page: Test Overview Why It Is Done How To Prepare How It Is … 24 hours. Uric acid is made from the natural breakdown of your body's cells. It's also made from the foods you eat. Your kidneys take uric acid out of your blood and put it …
Medical tests
… Catecholamines in Urine Test On this page: Test Overview Why It Is Done How To Prepare How It Is … (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 …
Medical tests
… Overnight Dexamethasone Suppression Test On this page: Test Overview Why It Is Done How To Prepare How It Is … dexamethasone pill. The next morning, the cortisol level in your blood will be measured. If your cortisol level stays high, Cushing's syndrome may be …
Medical tests
… Sodium (Na) in Blood Test On this page: Test Overview Why It Is Done How To Prepare How It Is … there's nothing you have to do before this test, unless your doctor tells you to. How It Is Done A health … Results Each lab has a different range for what's normal. Your lab report should show the range that your lab uses for …
Medical tests
… Lactic Acid Test On this page: Test Overview Why It Is Done How To Prepare How It Is … exercise for several hours before the test. Do not clench your fist while having your blood drawn for a lactic acid test. These activities …
Medical tests
… Cortisol in Blood Test On this page: Test Overview Why It Is Done How To Prepare How It Is … of the way cortisol levels vary throughout a day. If your doctor thinks you might make too much cortisol, the test will probably be done late in the day. If your doctor thinks you may not be making enough, a test is …
Medical tests
… Catecholamines in Blood Test On this page: Test Overview Why It Is Done How To Prepare How It Is … test. Do not use tobacco for 4 hours before the blood test. Your doctor may ask you to stop certain medicines, such as … Be sure to keep warm, because being cold can also increase your levels. Ask for a blanket if you feel cold. How It Is …
Medical tests
… Chloride (Cl) Test On this page: Test Overview Why It Is Done How To Prepare How It Is … Overview A chloride test measures the level of chloride in your blood or urine. Chloride is one of the most important … It helps keep the amount of fluid inside and outside of your cells in balance. It also helps maintain proper blood …
Medical tests
… Gonioscopy On this page: Test Overview Why It Is Done How To Prepare How It Is … is an eye examination to look at the front part of your eye (anterior chamber) between the cornea and the iris … to see whether the area where fluid drains out of your eye (called the drainage angle ) is open or closed. It …
Medical tests
… Pap Test On this page: Test Overview Why It Is Done How To Prepare How It Is … of cells from the surface of the cervix is collected by your doctor. The sample is then spread on a slide (Pap … cancer . The recommended Pap test schedule is based on your age and on things that increase your risk. Talk to your …
