329 results found
Medical tests
… glands then make a hormone called cortisol, which helps your body manage stress. Cortisol is needed for life, so its … cortisol (or low ACTH and high cortisol levels) could be caused by a problem with the adrenal glands. Low levels of … doctor wants a low (trough) ACTH level. How It Is Done A health professional uses a needle to take a blood sample, …
Medical tests
… . Sickle cell disease is an inherited blood disease that causes red blood cells to be deformed ( sickle-shaped ). The … the disease. Sickled red blood cells often cause recurring health problems called sickle cell crises . One set of genes … provinces test newborns for sickle cell disease. Talk with your doctor for more information. Why It Is Done A sickle …
Medical tests
… or cloudy), odour, concentration, and acidity (pH) of your urine. It also checks your levels of protein, sugar, … in your urine. A urine test may be done to help find the cause of symptoms. The test can give information about your health and problems you may have. The kidneys take out waste …
Medical tests
… measures the amount of a type of sugar, called glucose, in your blood. Glucose comes from carbohydrate foods . It is the main source of energy used by the body. Insulin is a hormone that helps your … the day. Random testing is useful because glucose levels in healthy people do not vary widely throughout the day. Blood …
Medical tests
… Overview A ventriculogram is a test that shows images of your heart. The images show how well your heart is pumping. The pictures let your doctor check the health of the lower chambers of your heart, called … of a radioactive tracer into your blood. Then your doctor uses a special camera to see how well your heart is pumping …
Medical tests
… in their sweat. During the sweat test , medicine that causes a person to sweat is applied to the skin (usually on … test can be done at any age. It may be done as soon as your baby is 10 days old, but it is often done when a baby … doctor will also look at your results based on your age, health, and other factors. A value that isn't in the normal …
Medical tests
… normally low. Testosterone increases during puberty. This causes boys to develop a deeper voice, get bigger muscles, … there's nothing you have to do before this test, unless your doctor tells you to. Your doctor may want you to do a … are highest between 7 a.m. and 9 a.m. How It Is Done A health professional uses a needle to take a blood sample, …
Medical tests
… from the intestinal tract into the bloodstream. Find the cause of a child's failure to gain weight, especially when the … with the results of a D-xylose test. For this reason, your doctor may instruct you to temporarily stop these … 24 hours after you drink the sugar solution. Blood test A health professional uses a needle to take a blood sample, …
Medical tests
… is a procedure that looks at the space behind your breastbone and between your lungs. This area is called … such as infection, inflammation, or cancer. The doctor may use the tube to take a sample of tissue from the area. This … options. Tell your doctor ALL the medicines and natural health products you take. Some may increase the risk of …
Medical tests
… Information Test Overview Coronary calcium scans use a special X-ray test called computed tomography (CT) to … more study or printed out as photographs. Why It Is Done Your doctor may want you to have a coronary calcium scan if … Over time, exposure to radiation may cause cancer and other health problems. But in most cases, the risk of getting …
