328 results found
Medical tests
… Coombs Test On this page: Test Overview Why It Is Done How To … tests are done to find certain antibodies that attack red blood cells. Antibodies are proteins made by the immune … cause antibodies to be made. Transfusion reaction Human blood is typed by certain markers (called antigens ) on the …
Medical tests
… D-Dimer Test On this page: Test Overview Why It Is Done How To … Test Overview A d-dimer test is a blood test that measures a substance that is released when a blood clot breaks up. Doctors order the d-dimer test, along …
Medical tests
… Allen Test On this page: Test Overview How It Is Done Results Test Overview The blood supply to your hand normally comes from two arteries: … procedure called the Allen test can be used to find out if blood flow to your hand is normal. This test checks to see …
Medical tests
… Vision Tests On this page: Test Overview Why It Is Done How To … stroke, head injury, or other condition that causes reduced blood flow to the brain. Colour vision tests These tests may … who is being tested, it's best to practice eye tests at home before you take your child to the appointment. This can …
Medical tests
… Ammonia Test On this page: Test Overview Why It Is Done How To … An ammonia test measures the amount of ammonia in the blood. Most ammonia in the body forms when protein is broken … , which is then eliminated in urine. Ammonia levels in the blood rise when the liver is not able to convert ammonia to …
Medical tests
… Gastrin Test On this page: Test Overview Why It Is Done How To … 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 …
Medical tests
… Folate Test On this page: Test Overview Why It Is Done How To … 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 …
Medical tests
… Ferritin Test On this page: Test Overview Why It Is Done How To … 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; …
Medical tests
… DHEA-S Test On this page: Test Overview Why It Is Done How To … . A test for DHEA-S checks the level of this hormone in the blood. Testosterone affects sexual features and development. … except water for 9 to 12 hours before you have your blood drawn. In most cases, you are allowed to take your …
Medical tests
… Toxoplasmosis Test On this page: Test Overview Why It Is Done How To … Test Overview A toxoplasmosis test is a blood test that checks for antibodies to the Toxoplasma … infection is recent or occurred in the past. More than one blood test may be done over several weeks. For most people, …
