329 results found
Medical tests
… These tests measure electrical activity that occurs in your eye when you look at something. Electrophysiology … find problems by showing how brain waves respond to certain things you look at during the test. Why It Is Done The … repeated patterns (checkerboard or dotted) that appear in quick flashes on a screen. The size or intensity of the …
Medical tests
… if the tracer is evenly spread in the gland. This helps your doctor know if the thyroid gland is working properly. … for hyperthyroidism. Plan treatment for patients who have had thyroid cancer surgery. How To Prepare Tell your doctor if you: Take any medicines regularly. Be sure …
Medical tests
… veins. An angiogram is done for many reasons. For example, you may have this test to find the source of bleeding, such as an … Or it may be done to look for blocked blood vessels in your lungs. During an angiogram, the doctor will put a thin, …
Medical tests
… are needed to change galactose into glucose, a sugar that your body uses for energy. A person with galactosemia doesn't have one of these enzymes, so high levels of galactose build … is removed. How It Feels Blood sample from a heel stick A quick sting or a pinch is usually felt when the lancet …
Medical tests
… Information Test Overview A mental health assessment gives your doctor a complete picture of your emotional state. It … If you are having a mental health assessment because you have certain symptoms, you may be asked to keep a diary or … most often have 20 to 30 questions that can be answered quickly. These are often in a "yes" or "no" format. You can …
Medical tests
… Sleep studies are tests that record what happens to your body during sleep. The studies are done to find out … your sleep problems. Sleep studies can also find out if you have a problem with your stages of sleep. The two main types … to sleep. At the start of the test, you will be asked to do things such as blink your eyes, move your legs, and hold …
Medical tests
… growth hormone. How To Prepare In general, there's nothing you have to do before this test, unless your doctor tells you … It Is Done Blood levels of growth hormone (GH) can change quickly, so more than one blood sample may be taken on …
Medical tests
… Catecholamine levels in the blood can change quickly, so it may be hard to find high values in a single … measures catecholamine levels over 24 hours. How To Prepare You may be asked to avoid certain foods and fluids for 2 to … feel nothing at all from the needle. Or you might feel a quick sting or pinch. Risks There is very little chance of …
Medical tests
… women for gestational diabetes. How To Prepare Tell your doctor about all the prescription and non-prescription … that contains 50, 75, or 100 grams of glucose. You will have more blood tests over 1 to 3 hours. Since activity can … feel nothing at all from the needle. Or you might feel a quick sting or pinch. You may feel faint from having several …
Medical tests
… It measures the density of minerals (such as calcium ) in your bones. This information helps your doctor estimate the … normal, you can increase it and your strength. You can do things like exercising, lifting weights or using weight … waves to measure bone density, usually in your heel. It is quick and painless. And it does not use potentially harmful …
