329 results found
Medical tests
… 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 … doctor will also look at your results based on your age, health, and other factors. A value that isn't in the normal …
Medical tests
… This test might be done if you have high iron levels in your blood. This test helps to find out if you have … gene test. You may worry that test results could affect your future employment options or the cost or availability … You might have a cheek test or a blood test. Cheek test A health professional gently swabs or scrapes the inside of …
Medical tests
… exercise for several hours before the test. Do not clench your fist while having your blood drawn for a lactic acid test. These activities may change the results. How It Is Done A health professional uses a needle to take a blood sample, …
Medical tests
… 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 … even after you stop taking the medicine. How It Is Done A health professional uses a needle to take a blood sample, …
Medical tests
… 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 Done A health professional uses a needle to take a blood sample, …
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 … your doctor tells you to. How It Is Done Blood test A health professional uses a needle to take a blood sample, …
Medical tests
… women for gestational diabetes. How To Prepare Tell your doctor about all the prescription and non-prescription … smoke, or do strenuous exercise for at least 8 hours before your first blood sample is taken. (You can drink water … doctor will also look at your results based on your age, health, and other factors. A value that isn't in the normal …
Medical tests
… (sodium). When a tumour that makes aldosterone is present, your aldosterone level will be high while a renin level will … tests. If you are having follow-up aldosterone blood tests, your doctor may give you the following instructions: Eat … levels are highest in the early morning. How It Is Done A health professional uses a needle to take a blood sample, …
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 … and prescription medicines you take. How It Is Done A health professional uses a needle to take a blood sample, …
Medical tests
… Check for too much or too little iron in the blood. See if your diet is providing enough iron. Find out if treatment to keep the right amount of iron in your blood is working. How To Prepare Do not eat or drink … is often done first thing in the morning. How It Is Done A health professional uses a needle to take a blood sample, …
