329 results found
Medical tests
… and fatty substances used as a source of energy by your body. Lipids are found in your blood and are stored in tissues. They are an important part of cells, and they help keep your body working normally. Lipids include cholesterol , …
Medical tests
… get one if a test shows that you have blood or protein in your urine. The biopsy is usually done by putting a long, … you can expect. And it will help you safely prepare for your procedure. Preparing for the procedure You may need to … before the day of the procedure. If this is the case, your doctor will tell you what to do. Be sure you have …
Medical tests
… how well the eyes, inner ears , and brain help you keep your balance and position (such as when you change from … when the head is moved. But nystagmus without moving your head or nystagmus that does not go away may be caused … of recordings is done. Baseline recordings are taken with your head at rest. More recordings are done: While you move …
Medical tests
… space (subarachnoid space) between the bones in your spine (spinal canal). A myelogram may be done to find a … is often done after the X-rays, while the dye is still in your body. Why It Is Done A myelogram is done to check for: … by other tests, such as an MRI or a CT scan. How To Prepare Your doctor will tell you if you need to change how much you …
Medical tests
… Test Overview Cardiac catheterization is a test to check your heart. This test uses a thin, flexible tube called a … exactly about when to stop eating and drinking. If your doctor told you to take your medicines on the day of the procedure, take them with …
Medical tests
… to measure the thickness of fat at one or more places on your body. It is most accurate when a well-trained person … impedance. A small electrical current is passed through your body to measure your body's electrical resistance. This resistance is used …
Medical tests
… The doctor puts a lighted tube through incisions in your belly. This tube is called a scope. Then the doctor … for surgery. Preparing for surgery You may need to empty your colon with an enema or laxative. Your doctor will tell you how to do this. Be sure you have …
Medical tests
… Test Overview A breath alcohol test is an estimate of your blood alcohol concentration (BAC). The test measures … in the air that you breathe out (exhale). You can measure your own breath alcohol level with a simple hand-held … directions, it can provide an accurate estimate of your blood alcohol level. There are different types of …
Medical tests
… more study or printed out as photographs. Why It Is Done Your doctor may want you to have a coronary calcium scan if … clear about whether you should start treatment to reduce your risk of coronary artery disease. footnote 1 A coronary … or drink anything that has caffeine for a few hours before your test. Tell your doctor if you get nervous in tight …
Medical tests
… urea nitrogen (BUN) test measures the amount of nitrogen in your blood that comes from the waste product urea. Urea is made when protein is broken down in your body. Urea is made in the liver and passed out of your body in the urine. A BUN test is done to see how well …
