329 results found
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
… from an artery. This test is used to find out how well your lungs are able to move oxygen into the blood and remove … carbon dioxide from the blood. As blood passes through your lungs, oxygen moves into the blood while carbon dioxide … Prepare If you take a medicine that prevents blood clots, your doctor may tell you to stop taking it before your test. …
Medical tests
… takes pictures of the organs and other structures in your upper belly. It uses sound waves to show images on a … to send bile to the bowels (intestines) . The bile helps your body digest food and absorb vitamins that dissolve in … Kidneys . This pair of organs is in the upper part of your belly, but toward your back. The kidneys remove wastes …
Medical tests
… much they are affected. These tests check to see how well your spinal nerves are working. They also check the nerves in your arms and legs. Why It Is Done You may need an EMG to find diseases that damage your muscles or nerves or to find out why you can't move …
Medical tests
… The barium is often combined with gas-making crystals. Your doctor watches the barium move through your esophagus, stomach, and the first part of the small … also be asked to stop eating for 12 hours before the test. Your doctor will tell you if you need to stop taking certain …
Medical tests
… Test Overview A tonometry test measures the pressure inside your eye, which is called intraocular pressure (IOP). This … eye. Tonometry measures IOP by recording the resistance of your cornea to pressure (indentation). Eyedrops to numb the surface of your eye are used with most of the following methods. …
Medical tests
… Information Test Overview Colonoscopy is a test that allows your doctor to look at the inner lining of your large intestine (rectum and colon). Your doctor uses a thin, flexible tube called a colonoscope …
Medical tests
… Test Overview Bronchoscopy is a procedure that allows your doctor to look at your airway through a thin viewing device called a bronchoscope. During a bronchoscopy , your doctor will examine your throat, larynx , trachea , and …
Medical tests
… the tracer is put into a vein (intravenous, or IV ) in your arm. Sometimes it's taken by mouth or inhaled through the nose. The tracer moves through your body, where it may collect in the specific organ or … How To Prepare Before you have a SPECT scan, tell your doctor if you: Have diabetes. If you take medicine to …
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 …
