221 results found
Medical tests
… much heart muscle has been damaged from the heart attack. During the scan, a camera takes pictures of the heart after … products you take. Some may increase the risk of problems during your test. Your doctor will tell you if you should … your heart muscle. You will be asked to remain very still during each scan. The camera will move to take more pictures …
Medical tests
… fluid, or CSF ) that surrounds the brain and spinal cord. During a spinal tap, a needle is carefully inserted into the … may be present. The pressure of the CSF also is measured during the procedure. Why It Is Done A spinal tap is done … products you take. Some may increase the risk of problems during your test. Your doctor will tell you if you should …
Medical tests
… ( metabolism ). The amount of GH in the blood changes during the day and is affected by exercise, sleep, emotional stress, and diet. Too much GH during childhood can cause a child to grow taller than normal ( gigantism ). Too little GH during childhood can cause a child to grow less than normal …
Medical tests
… If a large amount of fluid is going to be taken out during the procedure, you may lie on your back with your … in your arm. It is important that you lie completely still during the procedure, unless you are asked to change … is taken out. Tell your doctor if you do not feel well during the test. Risks There is a very small chance that the …
Medical tests
… how brain waves respond to certain things you look at during the test. Why It Is Done The different … done varies. Electroretinography (ERG) You sit or lie down during the test. Eye drops are used to numb the eye. A tiny … dark adaptation. Different wavelengths of light are used during the test to check for problems with the eye's rod and …
Medical tests
… cancer at an early stage. Many times this cancer is found during self-examination as a painless lump or a swollen … for swelling. Self-exam The self-examination is best done during or after a bath or shower—when the scrotum, the skin … is usually normal. There is no pain or discomfort during the examination. Abnormal: A small, hard lump (often …
Medical tests
… You will be given a cloth or paper to cover yourself during the test. You will lie on your back on a table. A … can be viewed from other angles. You need to lie very still during each scan to avoid blurring the pictures. You may be asked to hold your breath briefly during some of the scans. Each scan may take about 60 to 90 …
Medical tests
… or fluids with vanilla. Licorice. Do not use tobacco at all during the 24-hour urine collection. Be sure to keep warm during the 24 hours. Being cold can raise your catecholamine levels. Drink plenty of fluids during the 24 hours to avoid dehydration . Your doctor may …
Medical tests
… your scrotum many times. You will need to lie very still during the ultrasound scan. You may be asked to take a breath and hold it for several seconds during the scan. When the test is finished, the gel is … about 20 minutes. How It Feels Most people don't feel pain during the test. If your scrotum hurts already from an …
Medical tests
… of your eyes so that you will not feel the tonometer during the test. A strip of paper containing a dye … of your eyes so that you will not feel the tonometer during the test. You will stare straight ahead, or sometimes … of your eyes so that you will not feel the tonometer during the test. You may have a scratchy feeling on your …
