3215 results found
Medical tests
… ultrasound test uses reflected sound waves to see how blood flows through a blood vessel. It helps doctors assess the blood flow through major arteries and veins, such as those …
Health topics
… Rh sensitization during pregnancy? You may have Rh-negative blood, and your baby may have Rh-positive blood. If the two types of blood mix, your body will make antibodies. This is called Rh …
Medical tests
… dye and camera ( fluoroscopy ) to take pictures of the blood flow in the blood vessels of the head and neck . An angiogram of the … the veins or the four arteries (four-vessel study) carrying blood to the brain. During an angiogram, a thin, soft tube …
Medical tests
… Test Overview A reticulocyte count is a blood test that measures how fast red blood cells called reticulocytes are made by the bone marrow and released into the blood. Reticulocytes are in the blood for about 2 days …
Health topics
… Pulmonary embolism is the sudden blockage of a major blood vessel (artery) in the lung, usually by a blood clot . In most cases, the clots are small and aren't … can damage the lung. But if the clot is large and stops blood flow to the lung, it can be deadly. What causes it? …
Health topics
… on whether you have type 1 or type 2 diabetes. A1c blood test. This test shows the average level of blood sugar over the past 2 to 3 months. It helps your doctor see whether blood sugar levels have been staying within your target …
Health topics
… kidney damage. What causes it? The kidneys have many tiny blood vessels that filter waste from your blood. High blood sugar from diabetes can destroy these blood vessels. …
Medical tests
… test that uses dye and a camera to take pictures of the blood flow in an artery or a vein. An angiogram can be used … such as an ulcer. Or it may be done to look for blocked blood vessels in your lungs. During an angiogram, the doctor will put a thin, flexible tube into a blood vessel in your groin or arm. This tube is called a …
Health topics
… Overview The coronary arteries deliver blood to the heart muscle. The blood provides a continuous supply of oxygen and nutrients … and demand The coronary arteries regulate the supply of blood to your heart muscle depending on how much oxygen your …
Medical tests
… Test Overview Partial thromboplastin time (PTT) is a blood test that measures the time it takes your blood to clot. A PTT test can be used to check for bleeding problems. Blood clotting factors are needed for blood to clot …
