329 results found
Medical tests
… by the adrenal glands . Aldosterone levels tell the kidneys when to hold sodium in the body instead of passing it in the … Small amounts of sodium are also lost through the skin when you sweat. Most foods have sodium naturally in them or as an ingredient in …
Medical tests
… (also called a Mantoux tuberculin test) is done to see if you have ever been exposed to tuberculosis (TB). The test is … is a good test for finding a TB infection. It is often used when symptoms, screening, or testing, such as a chest X-ray …
Medical tests
… Prepare Many medicines can change the results of this test. You will need to avoid certain medicines depending on which kind of stool analysis you have. You may need to stop taking medicines such as … throw it away. Wash your hands. Your doctor will tell you when to return the sample to the lab. How long the test …
Medical tests
… are done to diagnose skin cancer , which may be suspected when an abnormal area of skin has changed colour , shape , … skin infection. How To Prepare In general, there's nothing you have to do before this test, unless your doctor tells you …
Medical tests
… genes (one set from each parent). As a result, a person may have: Two sets of genes that make normal hemoglobin … provinces test newborns for sickle cell disease. Talk with your doctor for more information. Why It Is Done A sickle … blood are collected. How It Feels Blood sample from a vein When a blood sample is taken, you may feel nothing at all …
Medical tests
… takes pictures of the organs and other structures in your upper belly. It uses sound waves to show images on a … This small organ is right under the liver. It stores bile. When you eat, the gallbladder contracts to send bile to the … this test. Results Abdominal ultrasound Normal: The organs have a normal size, shape, and texture. No abnormal growths …
Medical tests
… hormone (LH) test may be done to: Help find out why you can't get pregnant (infertility). LH testing is often … menstrual periods (amenorrhea). This can help see if you have started to go through menopause. Find out if a child is … puberty (also called precocious puberty). Puberty is early when it starts in females younger than age 8 and in males …
Medical tests
… the neck that carry blood to the brain. The test may help your doctor decide if a procedure is needed to open a … room for several hours before you go home. Arrange to have someone take you home, because you may get a sedative … to watch the movement of the catheter in the blood vessels. When the catheter is in place, the dye is injected through …
Medical tests
… Information Test Overview A genetic test checks the DNA of your cells. It can find changes in your genes or chromosomes … . This may be used to confirm a specific genetic illness when a person has symptoms of a disease. Pharmacogenomic … a good idea to get genetic counselling before deciding to have testing. Genetic counselling may involve: Discussing …
Medical tests
… that checks for problems with the electrical activity of your heart. An EKG shows the heart's electrical activity as … to control the heartbeat. Check the health of the heart when other diseases or conditions are present. These include … the test and how soon to do it. How It Is Done You may have to remove certain jewellery. You will take your top off …
