265 results found
Medical tests
… Risks Results Test Overview A ferritin blood test checks the amount of ferritin in the blood. Ferritin is a protein in the body that binds to iron; … marrow. Only a small amount of ferritin is found in the blood. The amount of ferritin in the blood shows how much …
Medical tests
… Overview A folate test measures the amount of folate in the blood. Folate is one of many B vitamins. The body needs folate for normal growth and to make red blood cells (RBC) , white blood cells (WBC) , and platelets . Folate also is important …
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
… 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 … ). This test can include a coronary angiogram, which checks blood flow in the coronary arteries . An angiogram can show …
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 …
