329 results found
Medical tests
… types of hemoglobin in the blood. Hemoglobin is the substance in red blood cells that carries oxygen. The most … Some diseases, such as severe forms of thalassemia , may cause hemoglobin A levels to be low and hemoglobin F levels to … certain types of anemia (such as thalassemia). Check treatment for diseases that have abnormal types of …
Medical tests
… body's immune system normally attacks and destroys foreign substances such as bacteria and viruses. But in disorders known as autoimmune diseases, the immune system …
Medical tests
… test checks for ketones in your blood or urine. Ketones are substances that are made when the body breaks down fat for … body with sugar (glucose) for energy or if your body can't use blood sugar (glucose) properly. Ketones can be tested in … or high-fat diet. Are starving or have an eating disorder, including disorders that result in poor nutrition …
Medical tests
… tests are blood tests that measure lipids—fats and fatty substances used as a source of energy by your body. Lipids are found in … Program (NCEP) Expert Panel on Detection, Evaluation, and Treatment of High Blood Cholesterol in Adults (Adult …
Medical tests
… long it takes blood to clot. A prothrombin time test can be used to check for bleeding problems. PT is also used to … factors. The absence of any of the clotting factors. Other substances, called inhibitors, that affect the clotting … time is often caused by liver disease or injury or by treatment with blood thinners. Why It Is Done Prothrombin …
Medical tests
… photon-emission computed tomography (SPECT) is a test that uses a special type of camera and a tracer (a radioactive substance in liquid form) to look at organs or bones in the … It Is Done A SPECT scan is done to: Check to see how well treatments are working. Examine bones for signs of cancer …
Medical tests
… bilirubin in a blood sample. Bilirubin is a brownish yellow substance found in bile . It is produced when the liver … of the eyes may look yellow (jaundice). Jaundice may be caused by liver disease ( hepatitis ), blood disorders ( … problems. So some babies who develop jaundice may need treatment to lower their bilirubin levels. Why It Is Done …
Medical tests
… also known as antibodies , in your blood. Antibodies are substances made by the body's immune system in response to bacteria, viruses, fungus, animal dander, or cancer cells. Antibodies … a low level of immunoglobulins (especially IgG ). Check the treatment for certain types of cancer affecting the bone …
Medical tests
… Overview A d-dimer test is a blood test that measures a substance that is released when a blood clot breaks up. … for blood-clotting problems. A d-dimer test can also be used to check how well a treatment is working. Why It Is Done Doctors use the d-dimer …
Medical tests
… involves having a skin or blood test to find out what substance, or allergen , may trigger an allergic response in a person. Skin tests are usually done because they are rapid, reliable, and generally less expensive … Your allergy test results may show that allergy treatment is a choice for you. Why It Is Done Allergy …
