284 results found
Medical tests
… Test Overview A sickle cell test is a blood test done to check for sickle cell trait or sickle … from a vein When a blood sample is taken, you may feel nothing at all from the needle. Or you might feel a quick … from a vein When a blood sample is taken, you may feel nothing at all from the needle. Or you might feel a quick …
Medical tests
… Test Overview A ketone test checks for ketones in your blood or urine. Ketones are substances that are made when … How It Feels Blood test by a laboratory You may feel nothing at all from the needle, or you may feel a quick sting … How It Feels Blood test by a laboratory You may feel nothing at all from the needle, or you may feel a quick sting …
Medical tests
… A bilirubin test measures the amount of bilirubin in a blood sample. Bilirubin is a brownish yellow substance found … of medicines that can damage the liver. Find out if something is blocking the bile ducts. This may occur if … 4 hours before the test. For children, there's generally nothing you have to do before this test, unless your doctor …
Medical tests
… waste product creatinine (say "kree-AT-uh-neen") in your blood and urine. These tests tell how well your kidneys are … paper, pubic hair, stool (feces), menstrual blood, or anything else in the urine sample. Keep the collected urine in … Blood test When a blood sample is taken, you may feel nothing at all from the needle. Or you might feel a quick …
Medical tests
… This test measures the amount of lead in a person's blood. Lead is a poisonous (toxic) metal that can damage the … water, or other material (such as paint chips). By breathing dust or smoke containing lead. Through skin contact … have lead poisoning. How To Prepare In general, there's nothing you have to do before this test, unless your doctor …
Medical tests
… Test Overview Mononucleosis tests are blood tests to look for antibodies that indicate … the immune system. How To Prepare In general, there's nothing you have to do before this test, unless your doctor … How It Feels When a blood sample is taken, you may feel nothing at all from the needle. Or you might feel a quick …
Medical tests
… A chloride test measures the level of chloride in your blood or urine. Chloride is one of the most important … are having symptoms such as muscle twitching or spasms, breathing problems, weakness, or confusion. Find out whether you … (sodium bicarbonate). How To Prepare In general, there's nothing you have to do before this test, unless your doctor …
Medical tests
… test measures the level of D-xylose, a type of sugar, in a blood or urine sample. This test is done to help diagnose … these medicines before the test. Do not eat or drink anything except water for 8 to 12 hours before having this … younger than 9 years old should not eat or drink anything except water for 4 hours before the test. A D-xylose …
Medical tests
… found in milk and milk products. A galactosemia test is a blood or urine test that checks for enzymes that are needed … disabilities. The damage caused by galactosemia can begin within weeks after the baby has started drinking breast milk … has galactosemia. How To Prepare You don't need to do anything to prepare for this test. How It Is Done Tests for …
Medical tests
… test measures the amount of this enzyme in a sample of blood taken from a vein or in a sample of urine. Normally, … test. For a blood test for amylase, do not eat or drink anything except water for at least 2 hours before having the … Blood test When a blood sample is taken, you may feel nothing at all from the needle. Or you might feel a quick …
