294 results found
Medical tests
… Information Test Overview Prothrombin time (PT) is a blood test that measures how long it takes blood to clot. A prothrombin time test can be used to check … PT is also used to check whether medicine to prevent blood clots is working. A PT test may also be called an INR …
Medical tests
… Test Overview An iron test checks the amount of iron in the blood. Iron (Fe) is a mineral needed for hemoglobin, the protein in red blood cells that carries oxygen. Iron is also needed for … About 70% of the body's iron is bound to hemoglobin in red blood cells . The rest is bound to other proteins, such as …
Medical tests
… Cardiac Catheterization in Children On this page: Overview … see images and get information about your child's heart and blood vessels from the inside. It can also be done to repair … a thin tube called a catheter. The catheter is put into a blood vessel in the groin, neck, or other place on your …
Medical tests
… and pulses of radio wave energy to provide pictures of blood vessels inside the body. In many cases MRA can provide … tomography (CT) scan . MRA can find problems with the blood vessels that may be causing reduced blood flow. With … Healthwise Staff Medical Review: Rakesh K. Pai MD, FACC - Cardiology, Electrophysiology E. Gregory Thompson MD - …
Medical tests
… Test Overview A cold agglutinins blood test is done to check for conditions that cause the … the immune system in response to infection. They cause red blood cells to clump together (agglutinate) at low … generally have low levels of cold agglutinins in their blood. But lymphoma or some infections, such as mycoplasma …
Medical tests
… Test Overview A lactic acid test is a blood test that measures the level of lactic acid made in the body. Most of it is made by muscle tissue and red blood cells . When the oxygen level in the body is normal, … , a severe infection (sepsis), or shock —lower the flow of blood and oxygen throughout the body. Lactic acid levels can …
Medical tests
… of chemicals dissolved in the liquid part (serum) of the blood. Chemicals that affect serum osmolality include … proteins, and sugar (glucose). This test is done on a blood sample taken from a vein. A substance called … drink enough water, the concentration of chemicals in your blood (serum osmolality) increases. When serum osmolality …
Medical tests
… how much human immunodeficiency virus (HIV) is in the blood. The test measures the amount of the genetic material ( RNA ) of HIV in the blood. Viral load is first measured when you are diagnosed … undetectable. This means there is very little virus in your blood. Why It Is Done A viral load test is done to watch for …
Medical tests
… Information Test Overview A parathyroid hormone (PTH) blood test measures the level of parathyroid hormone in the blood. This test is used to help identify … disease. PTH controls calcium and phosphorus levels in the blood. PTH is made by the parathyroid glands , which are …
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 …
