329 results found
Medical tests
… the level of parathyroid hormone in the blood. This test is used to help identify hyperparathyroidism , to find the … kidney disease. How To Prepare In general, there's nothing you have to do before this test, unless your doctor tells you to. How It Is Done A health …
Medical tests
… Information Overview Cardiac catheterization is a procedure your doctor uses to see images and get information about your child's heart and blood vessels from the inside. It can …
Medical tests
… hormone levels. DHEA-S might be tested to: Look for the cause of facial hair, a deep voice, or other signs of too much … disease . A tumour in an adrenal gland. How To Prepare If your doctor tells you to fast before your test, do not eat or drink anything …
Medical tests
… increase the amount of catecholamines in the blood. This causes high blood pressure, excessive sweating, headaches, … measures catecholamine levels over 24 hours. How To Prepare You may be asked to avoid certain foods and fluids for 2 to … wine. Any foods or fluids with vanilla. Licorice. Aspirin. You may be asked to not eat or drink anything for 10 hours …
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 … the urine can get too low. High levels of uric acid can cause crystals to form in joints. This causes a painful …
Medical tests
… test that may be done at 15 to 22 weeks of pregnancy. It's used to look for possible problems with your baby. The quad screening measures the amounts of four … baby and the placenta. This test can't show for sure that your baby has a birth defect. You would need a diagnostic …
Medical tests
… red blood cell bleeding scan, blood is taken from you, and a small amount of radioactive material called … The blood with the technetium is then injected back into your bloodstream. Red blood cells with the technetium … The technetium-labelled red blood cell bleeding scan is used: If the source of the bleeding in the large intestine …
Medical tests
… test that can check for problem areas in certain tissues in your body. A radioactive tracer (tracer) called gallium citrate is injected into a vein in your arm. It moves through your bloodstream and into certain … the test, talk with your doctor about how long to wait to use your milk after the test. Many doctors suggest waiting 4 …
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 … brain, or nerves connecting them work. These problems may cause dizziness , vertigo , or loss of balance. Nystagmus …
Medical tests
… Overview A viral test is done to find infection-causing viruses. Viruses grow only in living cells. Viruses cause … that may be present and the sample that will be tested. Your health professional will give you any specific instructions before your test. How It Is …
