329 results found
Medical tests
… Overview Hemochromatosis gene (HFE) testing is a blood test used to check for hereditary hemochromatosis, an inherited disorder that causes the body to absorb too much iron. The iron then builds … other organs. In its early stages, hemochromatosis can cause joint and belly pain, weakness, lack of energy, and …
Medical tests
… increase the amount of catecholamines in the blood. This causes high blood pressure, excessive sweating, headaches, … eat or drink anything for 10 hours before this test. Do not use tobacco for 4 hours before the blood test. Your doctor … 2 weeks before the test. Having a blood sample taken can cause stress. This may increase catecholamine levels. Be sure …
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 … Congenital adrenal hyperplasia. This is a condition that causes the adrenal glands to make too much male sex hormone. … of the test. The test is usually done in the morning, because that is when the amount of DHEA-S is at its highest. …
Medical tests
… Test Overview A tilt table test is used to check people who have fainted or who often feel light-headed. The results help your doctor know the cause of your fainting or feeling light-headed. The test uses a special table that slowly tilts you to an upright …
Medical tests
… A padded brace, foam pads, a headband, or sandbags may be used to hold your head in place while the pictures are … from radiation, including the low levels of radiation used for this test. But the chance of damage from the X-rays … Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means …
Medical tests
… Overview A renin assay blood test is done to find the cause of high blood pressure (hypertension) . Renin is an … glands. Why It Is Done A renin test is done to find the cause of high blood pressure (hypertension), especially when … after you move around for 2 hours. A health professional uses a needle to take a blood sample, usually from the arm. …
Medical tests
… makes ALT levels go up. Most increases in ALT levels are caused by liver damage. The ALT test is often done along with … Identify liver disease, such as cirrhosis and hepatitis, caused by alcohol, drugs, or viruses. Help check for liver damage. Find out whether jaundice …
Medical tests
… increases. High levels of uric acid in the blood can cause solid crystals to form within joints. This causes a painful condition called gout . If gout remains … deposits called tophi . High levels of uric acid may also cause kidney stones or kidney failure . Why It Is Done A uric …
Medical tests
… during pregnancy. The level of inhibin A in the blood is used in a maternal serum quadruple screening test. Generally … doctor tells you to. How It Is Done A health professional uses a needle to take a blood sample, usually from the arm. … Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means …
Medical tests
… defects in a fetus . It's done to find birth defects caused by an abnormal number of chromosomes . It also can … Tests for Birth Defects? Why It Is Done The test is used to look for birth defects caused by too many or too few chromosomes, such as trisomy 18 …
