299 results found
Medical tests
… Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Test Overview A phosphate … by the kidneys and passes out of the body in the urine. A high level of phosphate in the blood is usually caused by a … at the puncture site. Results Phosphate levels are usually higher in children than in adults. That's because of the …
Medical tests
… Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Test Overview A cortisol … cortisol levels rise during the early morning hours and are highest about 7 a.m. They drop very low in the evening and … that isn't in the normal range may still be normal for you. High values A high level of cortisol in the blood can mean …
Medical tests
… Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Test Overview The … a dose of dexamethasone, cortisol levels often stay very high in people who have Cushing's syndrome. Sometimes other conditions can keep cortisol levels high during this test. Examples include alcohol use disorder …
Medical tests
… Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Test Overview An … medicines, and some poisons. IgE antibody levels are often high in people with allergies. IgD. IgD antibodies are found … that isn't in the normal range may still be normal for you. High values IgA . High levels of IgA may mean that …
Medical tests
… Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Test Overview An aspartate … severe damage, AST levels rise in 6 to 10 hours and remain high for about 4 days. The AST test may be done at the same … for you. Results are usually available within 12 hours. High values High levels of AST may be caused by: Liver …
Medical tests
… Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Test Overview A … more calcium and phosphorus. If the calcium level is too high, the parathyroid glands release less PTH, and the whole process is reversed. PTH levels that are too high or too low can cause problems with the kidneys and …
Medical tests
… Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Test Overview A … pressure. But it is often used as a simple way to check for high IOP and is the easiest way to test children. This type … eye pressure is different for each person and is usually higher just after you wake up. The pressure inside the eye, …
Medical tests
… Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Test Overview A … begins. During pregnancy, the placenta also produces high levels of progesterone, starting near the end of the … of progesterone in a pregnant woman are about 10 times higher than they are in a woman who is not pregnant. Some …
Medical tests
… Why It Is Done How To Prepare How It Is Done How It Feels Risks Results Test Overview An ammonia … failure. Check the level of ammonia in a person receiving high-calorie intravenous (IV) nutrition (hyperalimentation). … that isn't in the normal range may still be normal for you. High values High levels of ammonia in the blood may be …
Medical tests
… Why It Is Done How To Prepare How It Is Done How It Feels Risks Results What Affects the Test … (SI units) 110–1500 picograms per millilitre (pg/mL) High values High levels of vitamin B12 can occur in liver disease (such …
