329 results found
Medical tests
… glands then make a hormone called cortisol, which helps your body manage stress. Cortisol is needed for life, so its levels in the blood are closely … Your doctor will tell you exactly how long depending on what medicine you take. Do not exercise for 12 hours before …
Medical tests
… in the blood. Magnesium is an important electrolyte needed for proper muscle, nerve, and enzyme function. It … a few minutes. How It Feels When a blood sample is taken, you may feel nothing at all from the needle. Or you might … at the site. Results Each lab has a different range for what's normal. Your lab report should show the range that …
Medical tests
… Prepare Many medicines can change the results of this test. You will need to avoid certain medicines depending on which kind of … foods for 2 to 3 days before the test. This depends on what kind of stool test you use. And do not do the test …
Medical tests
… Test Overview A swallowing study is a test that shows what your throat and esophagus do while you swallow. The test … that might get in the way of the X-ray picture. You may need to take off all or most of your clothes around the area …
Medical tests
… the neck that carry blood to the brain. The test may help your doctor decide if a procedure is needed to open a narrowed or blocked artery to increase … the blood vessel as the catheter is moved. Let your doctor know if you have pain. You will probably feel some warmth …
Medical tests
… the amount of iron in the blood. Iron (Fe) is a mineral needed for hemoglobin, the protein in red blood cells that … Check for too much or too little iron in the blood. See if your diet is providing enough iron. Find out if treatment to … the site. Results Normal Each lab has a different range for what's normal. Your lab report should show the range that …
Medical tests
… rhabdomyolysis . How To Prepare In general, there's nothing you have to do before this test, unless your doctor tells … to. How It Is Done Blood test A health professional uses a needle to take a blood sample, usually from the arm. Urine … this test. Results Each lab has a different range for what's normal. Your lab report should show the range that …
Medical tests
… called plaque in a blood vessel. During a CT angiogram, you lie on a table that passes through a doughnut-shaped … more of your blood vessels are narrowed or blocked, you may need a standard angiogram anyway to double-check the … for several hours before the test. Your doctor will let you know if there are certain foods or liquids you should avoid. …
Medical tests
… view of the parts of the eye . During the examination, your doctor can look at the front parts of the eye. These … To Prepare If you wear glasses or contact lenses, you will need to remove them before the slit lamp examination. … have trouble focusing your eyes for several hours. If you know that your eyes will be dilated, you may wish to find …
Medical tests
… is working. How To Prepare In general, there's nothing you have to do before this test, unless your doctor tells you to. How It Is done A health professional uses a needle to take a blood sample, usually from the arm. How … a few minutes. Results Each lab has a different range for what's normal. Your lab report should show the range that …
