329 results found
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
… meal high in phosphorus, having high levels of vitamin D in your body, or having an overactive parathyroid gland . Some … there's nothing you have to do before this test, unless your doctor tells you to. How It Is Done This test is … the toilet. Don't save this urine. This marks the start of your 24-hour period. For the next 24 hours, collect all your …
Medical tests
… Sleep studies are tests that record what happens to your body during sleep. The studies are done to find out what's causing your sleep problems. Sleep studies can also find out if you have a problem with your stages of sleep. The two main types of sleep are …
Medical tests
… 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 … to stop taking some medicines for 24 to 48 hours before your blood is drawn. How It Is Done The night before the …
Medical tests
… such as cimetidine, letrozole, and levodopa, can change your test results. You may be asked to stop taking medicines … having a follicle-stimulating hormone (FSH) test. Make sure your doctor has a complete list of all the prescription and … Normal Each lab has a different range for what's normal. Your lab report should show the range that your lab uses for …
Medical tests
… 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 volume, blood pressure, and pH of your body fluids. Tests for sodium, potassium, and …
Medical tests
… you produce over a 24-hour period. You start collecting your urine in the morning. When you first get up, empty your bladder, but don't save this urine. Write down the time that you urinated to mark the start of your 24-hour collection period. For the next 24 hours, …
Medical tests
… up after eating, especially after you eat fatty foods. Tell your doctor ALL the medicines and natural health products … you take. Some may increase the risk of problems during your test. Your doctor will tell you if you should stop taking any of …
Medical tests
… 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 … time is an important test because the time it takes your blood to clot may be affected by: Blood-thinning … can change the results of this test. Be sure to tell your doctor about all the non-prescription and prescription …
Medical tests
… the cause of low blood sugar (hypoglycemia). How To Prepare Your doctor will give you instructions about eating and … used to treat type 2 diabetes can change the test results. Your doctor may ask you to stop these medicines before your blood test. How It Is Done A health professional uses a …
