329 results found
Medical tests
… fainted or who often feel light-headed. The results help your doctor know the cause of your fainting or feeling … to an upright position. It checks how your body responds when you change positions. Why It Is Done This test is done … to an upright position. It checks how your body responds when you change positions. Why It Is Done This test is done …
Medical tests
… gland controls the level of testosterone in the body. When the testosterone level is low, the pituitary gland … feel nothing at all from the needle. Or you might feel a quick sting or pinch. Risks There is very little chance of … women, a low level of testosterone may be caused by an underactive pituitary gland, Addison's disease , loss of ovary …
Medical tests
… gastrointestinal (or GI) endoscopy is a test that allows your doctor to look at the inside of your esophagus, … the test. How It Feels You may notice a brief, sharp pain when the intravenous (IV) needle is placed in a vein in your … the test. How It Feels You may notice a brief, sharp pain when the intravenous (IV) needle is placed in a vein in your …
Medical tests
… than a regular X-ray test. During a bone scan, a radioactive substance called a tracer is injected into a vein in your arm. The tracer travels through your bloodstream and … How It Feels You may feel nothing at all from the needle when the tracer is injected, or you may feel a brief sting …
Medical tests
… Test Overview The blood supply to your hand normally comes from two arteries: the radial … artery. Results Allen test Normal (positive) Your hand quickly becomes warm and returns to its normal colour. This … artery. Results Allen test Normal (positive) Your hand quickly becomes warm and returns to its normal colour. This …
Medical tests
… treating the infection. This is called sensitivity testing. You may be asked to cough to provide the sputum sample. Some … infection may include having a hard time breathing, pain when breathing, or a cough that produces bloody or greenish … this test. Results Some types of bacteria or fungi grow quickly in a culture. Others grow slowly. Test results may …
Medical tests
… ENG checks how well the eyes, inner ears , and brain help you keep your balance and position (such as when you change from lying down to standing). ENG is done to … or back problem to get worse during the test because of the quick body movements that are done. Results Normal Test …
Medical tests
… Screening tests are used to see what the chance is that your baby has a certain birth defect. If a screening test is … to take a blood sample, usually from the arm. How It Feels When a blood sample is taken, you may feel nothing at all from the needle. Or you might feel a quick sting or pinch. Risks There is very little chance of …
Medical tests
… (called antigens ) on the surface of red blood cells . If you get a blood transfusion, the transfused blood must match … the father has Rh-positive blood. Rh sensitization happens when the baby's blood mixes with the mother's blood during … feel nothing at all from the needle. Or you might feel a quick sting or pinch. Risks There is very little chance of …
Medical tests
… testing. How To Prepare In general, there's nothing you have to do before this test, unless your doctor tells … or tissue collected from a wound, you may feel some pain when the sample is collected. You may feel a short, sharp … Results Some types of bacteria, fungi, and viruses grow quickly in culture, and some grow slowly. Test results may …
