329 results found
Medical tests
… Overview Fertility awareness is a way to check the changes your body goes through during your menstrual cycle . (It's also called natural family … changes can help you know when you ovulate . You can then time sexual intercourse to try to become pregnant or to try …
Medical tests
… colonography . Which screening test you choose depends on your risk, your preference, and your doctor. Talk to your doctor about … Some medicines may also need to be stopped for a brief time before the test. Don't do the stool tests during your …
Medical tests
… with the results of a D-xylose test. For this reason, your doctor may instruct you to temporarily stop these … 4 hours before the test. A D-xylose test can take a long time. It might be a good idea to bring something you can do … drink a D-xylose solution. To begin the test, a sample of your first urine of the day and a sample of your blood are …
Medical tests
… These tests measure electrical activity that occurs in your eye when you look at something. Electrophysiology … problems of the retina. A full-field ERG can check how well your entire retina is working. A multifocal ERG (mfERG) … from side to side (at the same angle). Total examination time is about 40 to 45 minutes. Visual evoked response (VER) …
Medical tests
… meal high in phosphorus, having high levels of vitamin D in your body, or having an overactive parathyroid gland . Some … for calcium and creatinine levels may be done at the same time as a phosphate urine test. Why It Is Done A test to … there's nothing you have to do before this test, unless your doctor tells you to. How It Is Done This test is …
Medical tests
… 24 hours. Uric acid is made from the natural breakdown of your body's cells. It's also made from the foods you eat. Your kidneys take uric acid out of your blood and put it … your bladder. But do not save this urine. Write down the time that you urinated to mark the beginning of your 24-hour …
Medical tests
… difficile (C. diff) are bacteria that live in your large intestine, or colon, all the time. They usually don't cause problems. But sometimes, … difficile (C. diff) toxins. How To Prepare Tell your doctor if you have recently taken antibiotics. How It …
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 … drink. But food in your stomach may increase the amount of time it takes for the blood alcohol to reach its highest …
Medical tests
… a dye called contrast material is injected into a vein in your arm. A series of X-ray pictures is then taken at timed intervals. IVP is commonly done to identify diseases … have an enema the morning of the test) to make sure that your bowels are empty. If you are breastfeeding, you may …
Medical tests
… But if cancer is found in the sentinel lymph node at the time of surgery, more surgery may be needed to remove … cancer is normally one of the lymph nodes under the arm. Your doctor injects a blue dye or special tracer substance … and which lymph node is most likely to have cancer cells. Your doctor can see the dye or tracer with a special device. …
