165 results found
Medical tests
… A small amount of a suspected allergen is placed on or below the skin to see if a reaction develops. There are three … on the skin, and a series of scratches or needle pricks allows the solution to enter the skin. If the skin develops a … skin about 2.5 cm (1 in.) to 5 cm (2 in.) apart. This allows many substances to be tested at the same time. Prick …
Medical tests
… urine, your brain is overriding this reflex. When you allow the reflex to occur, urination occurs. A problem … office. You will need to take off most of your clothes below the waist. You will be given a cloth or paper covering … into a toilet that is connected to a machine called a uroflowmeter. This machine measures how much urine passes and …
Medical tests
… Overview Anoscopy, proctoscopy, and sigmoidoscopy tests allow your doctor to look at the inner lining of your anus, your rectum, and the lower part of the large intestine (colon). These tests are … accuracy of the test. You may be told to follow a liquid diet for 1 to 2 days before the test. You may be told to not …
Medical tests
… a thin viewing tool called an arthroscope, or scope. It allows the doctor to see the joint surfaces and the tough … (which is done using a larger incision), arthroscopy allows your doctor to see what is wrong with your joint. But … band (tourniquet) may be used to briefly restrict blood flow to your joint. This allows your doctor to see all the …
Medical tests
… days. Risks Risks from gathering a sample There is a very low risk of problems from taking samples of blood, saliva, … days. Risks Risks from gathering a sample There is a very low risk of problems from taking samples of blood, saliva, …
Medical tests
… and camera ( fluoroscopy ) to take pictures of the blood flow in the blood vessels of the lung . During an angiogram, … also find narrowing or a blockage in a blood vessel that slows or stops blood flow. Why It Is Done A lung angiogram may be done to measure …
Medical tests
… beam of X-rays to look at movement within the body. It allows the doctor to see your organs move or to guide a biopsy … cancer from being exposed to small amounts of radiation is low. It is not a reason to avoid these tests for most … beam of X-rays to look at movement within the body. It allows the doctor to see your organs move or to guide a biopsy …
Medical tests
… prepare for your procedure. Preparing for the procedure Follow the instructions exactly about when to stop eating and … of the procedure, take them with only a sip of water. Follow your doctor's instructions about when to bathe or shower … through your skin and into the blood vessel. The doctor slowly pushes the catheter through the blood vessel toward …
Medical tests
… exercise, have a fever, or are under stress. It will be slower when you are resting. Why It Is Done Your pulse is … chest pain, or shortness of breath. Check for blood flow after an injury or when a blood vessel may be blocked. … ). Stimulants such as caffeine, amphetamines , diet pills, and cigarettes. Drinking alcohol. Stress. Slow …
Medical tests
… and camera ( fluoroscopy ) to take pictures of the blood flow in the blood vessels of the head and neck . An angiogram … also show narrowing or a blockage in a blood vessel that slows or stops blood flow. An abnormal pattern of blood vessels (arteriovenous …
