329 results found
Medical tests
… in 10 to 15 minutes. Why It Is Done It may be done so your doctor can find out right away whether you have strep … have this test. How It Is Done You will be asked to tilt your head back and open your mouth as wide as possible. Your doctor will press your …
Medical tests
… for up to 4 weeks before having a progesterone test. Tell your doctor if you have had a test that used a radioactive … radioactive tracer can interfere with the test results. Let your doctor know the first day of your last menstrual period. If your bleeding pattern is …
Medical tests
… 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. … about when to stop eating and drinking. If you don't, your test may be cancelled. If your doctor told you to take …
Medical tests
… (sodium). When a tumour that makes aldosterone is present, your aldosterone level will be high while a renin level will … tests. If you are having follow-up aldosterone blood tests, your doctor may give you the following instructions: Eat … A low-salt diet can also increase aldosterone levels. Tell your doctor if you are on a low-salt food plan. Do not eat …
Medical tests
… can cause an infection. A sample of cells from the back of your throat is added to a substance that promotes the growth … there's nothing you have to do before this test, unless your doctor tells you to. Tell your doctor if you have recently taken any antibiotics. How …
Medical tests
… Home urine tests for ovulation are available. Check your response to medicines given to stimulate ovulation. How To Prepare Many medicines can change your results. Some examples are letrozole, testosterone, and … estrogen or progesterone or both for up to 4 weeks before your luteinizing hormone (LH) test. Make sure your doctor …
Medical tests
… Test Overview A swallowing study is a test that shows what your throat and esophagus do while you swallow. The test … foods coated with barium. The barium shows the movements of your throat and esophagus on the X-ray while you swallow. Why It Is Done The test helps your doctor see why you're having trouble swallowing. After …
Medical tests
… dexamethasone pill. The next morning, the cortisol level in your blood will be measured. If your cortisol level stays high, Cushing's syndrome may be … to stop taking some medicines for 24 to 48 hours before your blood is drawn. How It Is Done The night before the …
Medical tests
… get a blood transfusion, the transfused blood must match your type. That means the transfused blood must have the same antigens as your red blood cells. If you get a transfusion of blood with antigens different from yours (incompatible blood), your immune system destroys the …
Medical tests
… the amount of a protein called C-reactive protein in your blood. C-reactive protein measures general levels of inflammation in your body. High levels of CRP are caused by infections and … there's nothing you have to do before this test, unless your doctor tells you to. How It Is Done A health …
