322 results found
Medical tests
… Test Overview A rheumatoid factor (RF) blood test measures the amount of the RF antibody present in … can attach to normal body tissue and cause damage. A high level of RF can be caused by several autoimmune … there's nothing you have to do before this test, unless your doctor tells you to. How It Is Done A health …
Medical tests
… the level of adrenocorticotropic hormone (ACTH) in the blood to check for problems with the pituitary gland and … glands then make a hormone called cortisol, which helps your body manage stress. Cortisol is needed for life, so its … cortisol levels change throughout the day. ACTH is normally highest in the early morning (between 6 a.m. and 8 a.m.) and …
Medical tests
… Test Overview An iron test checks the amount of iron in the blood. Iron (Fe) is a mineral needed for hemoglobin, the … Check for too much or too little iron in the blood. See if your diet is providing enough iron. Find out if treatment to … iron-binding capacity (TIBC), and transferrin saturation. High and low values The values for serum iron, total …
Medical tests
… measures the amount of human growth hormone (GH) in the blood. GH is made by the pituitary gland and is needed for … -like growth factor 1 (IGF-1). When the GH level is very high, the IGF-1 level is also very high. A test for IGF-1 … there's nothing you have to do before this test, unless your doctor tells you to. How It Is Done Blood levels of …
Medical tests
… Test Overview A hemoglobin electrophoresis test is a blood test done to check the different types of hemoglobin … hemoglobin A levels to be low and hemoglobin F levels to be high. Hemoglobin F (fetal hemoglobin). This type is normally … from a parent to a child (inherited). How To Prepare Tell your doctor if you are getting iron therapy for iron …
Medical tests
… the level of immunoglobulins, also known as antibodies , in your blood. Antibodies are substances made by the body's immune … medicines, and some poisons. IgE antibody levels are often high in people with allergies. IgD. IgD antibodies are found …
Medical tests
… Information Test Overview The sedimentation rate (sed rate) blood test measures how quickly red blood cells … that fall to the bottom of the test tube in one hour, the higher the sed rate. When inflammation is present in the … there's nothing you have to do before this test, unless your doctor tells you to. How It Is Done A health …
Medical tests
… Information Test Overview A parathyroid hormone (PTH) blood test measures the level of parathyroid hormone in the … more calcium and phosphorus. If the calcium level is too high, the parathyroid glands release less PTH, and the whole … there's nothing you have to do before this test, unless your doctor tells you to. How It Is Done A health …
Medical tests
… (ALP) test measures the amount of the enzyme ALP in the blood. ALP is made mostly in the liver and in bone with some … D deficiency, or damaged liver cells. If the ALP level is high, more tests may be done to find the cause. The amounts … up after eating, especially after you eat fatty foods. Tell your doctor ALL the medicines and natural health products …
Medical tests
… Overview A folate test measures the amount of folate in the blood. Folate is one of many B vitamins. The body needs … usually affected by the amount of folate and folic acid in your diet each day. Folate deficiency can result in a type … B12 deficiency is working. See if the folate level is high enough to prevent certain birth defects. How To Prepare …
