265 results found
Medical tests
… measures the amount of the amino acid homocysteine in the blood. Why It Is Done A homocysteine blood test is done to: Help identify vitamin B12 deficiency … to energy. Help determine a cause for otherwise unexplained blood clots. How To Prepare Do not eat or drink anything …
Medical tests
… Test Overview A hemoglobin electrophoresis test is a blood test done to check the different types of hemoglobin in the blood. Hemoglobin is the substance in red blood cells that carries oxygen. The most common types of …
Medical tests
… Results Test Overview A carbon monoxide blood test is used to detect carbon monoxide poisoning . … it. The test measures the amount of hemoglobin in your blood that has bonded with carbon monoxide. Carbon monoxide … that is normally carried by the hemoglobin in your red blood cells. As a result, your brain and other tissues get …
Medical tests
… test measures the level of the hormone gastrin in the blood. Gastrin is produced by cells, called G cells, in the … the stomach, G cells trigger the release of gastrin in the blood. As blood levels of gastrin rise, the stomach releases acid …
Medical tests
… (SPEP) test measures specific proteins in the blood to help identify some diseases. Proteins are … uses an electrical field to separate the proteins in the blood serum into groups of similar size, shape, and charge. Blood serum contains two major protein groups: albumin and …
Medical tests
… test measures the amount and pattern of antibodies in your blood that work against your own body (autoimmune reaction). … It Is Done A health professional uses a needle to take a blood sample, usually from the arm. How long the test takes … The test will take several minutes. How It Feels When a blood sample is taken, you may feel nothing at all from the …
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
… Information Test Overview An alpha-fetoprotein (AFP) blood test checks the level of AFP in a pregnant woman's blood. AFP is a substance made in the liver of an unborn baby (fetus). The amount of AFP in the blood of a pregnant woman can help see whether the baby may …
Medical tests
… changes the levels of the hormone cortisol in the blood. This test checks for a condition in which large … pregnancy, and uncontrolled diabetes. The night before the blood test, you will take a dexamethasone pill. The next morning, the cortisol level in your blood will be measured. If your cortisol level stays high, …
Medical tests
… Monitor heart function during surgery. Look for masses or blood clots in the upper left chamber (left atrium) of the … a replacement heart valve works. Measure the speed at which blood travels through the heart. Measure the blood pressure and speed of blood flow through the heart …
