329 results found
Medical tests
… amount of an enzyme called hexosaminidase A (Hex A) in the blood. Hex A breaks down fatty substances in the brain and … disease, or who live in a community or population with a high amount of Tay-Sachs disease may want to be tested. … to see whether you are a Tay-Sachs carrier, you should tell your doctor if you have had a blood transfusion in the past …
Medical tests
… For an MRI test, you are placed inside the machine so that your knee is inside the strong magnetic field. MRI can find … in the pictures. The contrast material may be used to check blood flow, find some types of tumours, and show areas of … get this medicine, be sure you have someone to take you home. How It Is Done You will need to remove all metal …
Medical tests
… test that can check for problem areas in certain tissues in your body. A radioactive tracer (tracer) called gallium … is injected into a vein in your arm. It moves through your bloodstream and into certain tissues. These tissues include … The pictures show the areas where the amount of tracer is higher than normal. These areas are called hot spots. It …
Medical tests
… to cell damage. LDH levels are measured from a sample of blood taken from a vein. Why It Is Done LDH levels help find … there's nothing you have to do before this test, unless your doctor tells you to. How It Is done A health … to confirm a diagnosis. For many healthy people, a slightly high LDH isn't serious. It can happen because of exercise or …
Medical tests
… different functions of the eye. Some of the tests measure your ability to see details at near and far distances, check … It includes the central visual field—which detects the highest degree of detail—and the peripheral visual fields. … stroke, head injury, or other condition that causes reduced blood flow to the brain. Colour vision tests These tests may …
Medical tests
… For an MRI test, you are placed inside the machine so that your shoulder is inside the strong magnetic field. MRI can … in the pictures. The contrast material may be used to check blood flow, find some types of tumours, and show areas of … get this medicine, be sure you have someone to take you home. How It Is Done You will need to remove all metal …
Medical tests
… that can't be seen with other imaging tests. For an MRI, your body is placed inside a machine that contains a strong … a bone scan . Find areas of the spine that do not have good blood supply. Find an infection. Find nerve damage caused by … get this medicine, be sure you have someone to take you home. How It Is Done You may have contrast material (dye) …
Medical tests
… test detects antibodies to the Lyme disease bacteria in the blood. Lyme disease bacteria are spread by certain kinds of … are similar to those of many other illnesses. If you and your doctor think you have Lyme disease, your doctor will do … becoming infected before antibodies can be detected in a blood test. Once formed, antibodies usually stay in your …
Medical tests
… Overview A HIDA scan is an imaging test that checks how your gallbladder is working. The gallbladder is a small sac … around you after the test. You will probably be able to go home right away. You can go back to your usual activities … Abnormal: The tracer may not be removed normally from the blood by the liver. This may be a sign of liver disease. The …
Medical tests
… occurring. EEG is the most useful and important test for checking if someone has epilepsy. Check for problems with … waves are normally found when you are alert or have taken high doses of certain medicines, such as benzodiazepines . … has stopped. It's usually caused by lack of oxygen or blood flow inside the brain. It may happen when a person has …
