329 results found
Medical tests
… aminotransferase, or ALT. The ratio of AST to ALT sometimes can help determine whether the liver or another organ has … the liver. How To Prepare In general, there's nothing you have to do before this test, unless your doctor tells … of vitamin A. Kidney or lung damage. Mononucleosis . Some types of cancer. Medical Tests: …
Medical tests
… is reversed. PTH levels that are too high or too low can cause problems with the kidneys and bones and cause … kidney disease. How To Prepare In general, there's nothing you have to do before this test, unless your doctor tells … of the intestines to absorb calcium from food. Some types of cancer, such as lung, kidney, pancreatic, or …
Medical tests
… Sleep studies are tests that record what happens to your body during sleep. The studies are done to find out what's causing your sleep problems. Sleep studies can also find out if you have a problem with your stages of sleep. The two main types of sleep are non–rapid eye movement (NREM) and rapid …
Medical tests
… kidneys. Certain rare tumours (such as a pheochromocytoma ) can increase the amount of catecholamines in the blood. This … measures catecholamine levels over 24 hours. How To Prepare You may be asked to avoid certain foods and fluids for 2 to … an adrenal gland tumour ( pheochromocytoma ) or another type of tumour that makes catecholamines is present. Any …
Medical tests
… that is looked at under a microscope to check for breast cancer. A breast biopsy is usually done to check a lump … an MRI . There are several ways to do a breast biopsy. The type of biopsy that you have will depend on the size and location of the …
Medical tests
… Information Test Overview Neuropsychological testing can help your doctor find out how a problem with your brain is … take a series of tests, rather than a single test. This type of testing is most often done by a psychologist with …
Medical tests
… (during puberty), bone disease (such as Paget's disease or cancer that has spread to the bones), a disease that affects … may be done to find the cause. The amounts of different types of ALP in the blood may be measured and used to … Done The ALP test is done to: Check for liver damage when you're taking medicines that can damage the liver. Help look …
Medical tests
… difficile (C. diff) are bacteria that live in your large intestine, or colon, all the time. They usually … swollen. This problem is called C. diff colitis . C. diff can be passed from person to person. But the infection is … you collect the stool sample. Results There are several types of tests for this toxin. Depending on the test used, …
Medical tests
… identify a childhood disorder called Reye syndrome that can damage the liver and the brain. Ammonia testing can also … sample is taken from a vein When a blood sample is taken, you may feel nothing at all from the needle. Or you might … High ammonia values in a baby may be present when the blood types of a mother and her baby do not match ( hemolytic …
Medical tests
… gastrointestinal (or GI) endoscopy is a test that allows your doctor to look at the inside of your esophagus, … look for ulcers, tumours, infection, or bleeding. It also can be used to look for signs of acid backing up into your … health care wishes. It's a good thing to have before any type of surgery or procedure. How It Is Done How is an upper …
