281 results found
Medical tests
… It Is Done Results Test Overview The blood supply to your hand normally comes from two arteries: … called the Allen test can be used to find out if blood flow to your hand is normal. This test checks to see if both … involves one of the arteries, or to help check for a blood flow problem. How It Is Done For the Allen test, you will …
Medical tests
… see images and get information about your child's heart and blood vessels from the inside. It can also be done to repair … pressures in the heart chambers and see how the blood is flowing through the heart. Collect samples of blood from … defect, a cardiac catheterization can show how blood is flowing through the heart and how well the heart is working. …
Medical tests
… and pulses of radio wave energy to provide pictures of blood vessels inside the body. In many cases MRA can provide … with the blood vessels that may be causing reduced blood flow. With MRA, both the blood flow and the condition of the blood vessel walls can be seen. …
Medical tests
… An ammonia test measures the amount of ammonia in the blood. Most ammonia in the body forms when protein is broken … , which is then eliminated in urine. Ammonia levels in the blood rise when the liver is not able to convert ammonia to … caused by cirrhosis or severe hepatitis . For this test, a blood sample may be taken from either a vein or an artery. …
Medical tests
… called a catheter that is inserted into the heart through blood vessels. A cardiac catheterization can check blood flow in the coronary arteries. It also checks the function of … test can include a coronary angiogram, which checks blood flow in the coronary arteries . An angiogram can show if you …
Medical tests
… Results Test Overview A carbon monoxide blood test is used to detect carbon monoxide poisoning . … do. So women and children may have more severe symptoms at lower levels. Medical Tests: Questions … do. So women and children may have more severe symptoms at lower levels. Medical Tests: Questions …
Medical tests
… Information Test Overview The hepatitis A virus test is a blood test that shows if you have a hepatitis A infection … made by the body to fight the virus. They will be in your blood if you have a hepatitis A infection now or have had … to 12 weeks after you are first infected. They stay in your blood and protect you from hepatitis A permanently. Why It …
Medical tests
… your mouth to your stomach. The doctor will ask you to swallow as the tube goes down. The transducer is at the tip of … Monitor heart function during surgery. Look for masses or blood clots in the upper left chamber (left atrium) of the … the heart. Measure the blood pressure and speed of blood flow through the heart valves. Identify abnormal blood flow …
Medical tests
… chest pains. Check how well your heart is pumping blood. Check to see how well your heart valves are working. … chambers. Measure the blood pressure and speed of blood flow through the heart. How to Prepare You don't need to do … will be pressed firmly against your chest and moved slowly back and forth. It is usually moved to different areas …
Medical tests
… load test measures how much hepatitis C virus is in the blood. Viral load may be measured before, during, and after … test is done to see if there is any active virus in the blood. It's sometimes used to see how well treatment for … It Is Done A health professional uses a needle to take a blood sample, usually from the arm. How It Feels You may …
