272 results found
Medical tests
… , or the genetic material ( DNA or RNA ) of HIV in the blood or another type of sample. This can show if an HIV infection is present (HIV-positive). HIV infects white blood cells called CD4+ cells. They are part of the body's … to 12 weeks for HIV antibodies or antigens to appear in the blood. The period between becoming infected with HIV and the …
Medical tests
… protein test measures the total amount of protein in the blood. It also measures the amounts of two major groups of proteins in the blood: albumin and globulin. Albumin. This is made mainly in the liver. It helps keep the blood from leaking out of blood vessels. Albumin also helps …
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 … chance of being exposed to the virus if you have been to a country where the disease is common, you work in a daycare …
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 …
