329 results found
Medical tests
… Allen Test On this page: Test Overview How It Is Done Results Test Overview The … the ulnar artery. A procedure called the Allen test can be used to find out if blood flow to your hand is normal. This test checks to see if both of these blood vessels are open and working correctly. It may be done before a blood …
Medical tests
… Body Fluids Tests On this page: Test Overview How It Is Done Results Test Overview Blood and urine are often tested to find the cause of health problems. But other body fluids also can be … from the genital area, such as semen or cervical mucus. How It Is Done Body fluid tests are done by taking some …
Medical tests
… Genetic Tests On this page: Test Overview Why It Is Done How It Is Done Risks Results Test … or explain results. Risks There are some things to consider when you use an at-home genetic test. The test may not be as accurate …
Medical tests
… Spiral CT Scan On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results … through your chest to make detailed pictures. A low-dose CT uses much less radiation than a regular-dose CT scan. A … to the CT scanner. The table slides into the round opening of the scanner, and the scanner moves around your …
Medical tests
… for the Eyes On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results … tests measure electrical activity that occurs in your eye when you look at something. Electrophysiology includes … test also looks at other cells in the retina. It may be used to check for problems such as: Retina damage from drugs …
Medical tests
… (SPECT) On this page: Test Overview Why It Is Done How To Prepare How It Is Done How It Feels Risks Results … photon-emission computed tomography (SPECT) is a test that uses a special type of camera and a tracer (a radioactive … the test. You use sedatives . You take medicines, such as insulin , that change your metabolism. You recently had …
Medical tests
… Echocardiogram On this page: Test Overview Why It Is Done How to Prepare How It Is Done How It Feels Risks Results … Test Overview An echocardiogram (also called an echo) uses sound waves to make an image of your heart. A device … coronary arteries. One or more heart valves do not open or close properly (are leaking) or do not look normal. …
Medical tests
… Echocardiogram On this page: Test Overview Why It Is Done How to Prepare How It Is Done How It Feels Risks Results … Test Overview An echocardiogram (also called an echo) uses sound waves to make an image of your heart. A device … coronary arteries. One or more heart valves do not open or close properly (are leaking) or do not look normal. …
Medical tests
… Echocardiogram On this page: Test Overview Why It Is Done How to Prepare How It Is Done How It Feels Risks Results … be monitored throughout the procedure. Also, a small device used to measure the amount of oxygen in your blood ( pulse … coronary arteries. One or more heart valves do not open or close properly (are leaking) or do not look normal. …
Medical tests
… of a regular eye examination. To do the test, the doctor uses a light and a magnifying tool. Why is a dilated eye … You may also have a vision test and a test for glaucoma. How is a dilated eye examination done? Tell your doctor if … a bright light into your eyes and examine them. What happens after the test? Your vision will be blurry for several …
