194 results found
Medical tests
… may still be normal for you. High values Very high ferritin levels can mean a large buildup of iron in the body ( … too much iron (acquired hemochromatosis). High ferritin levels may also be caused by Hodgkin disease , leukemia , … can affect how the organ works. Low values Low ferritin levels often mean an iron deficiency is present. This can be …
Medical tests
… Why It Is Done You may need this test if you: Have low levels of calcium or phosphate . Have osteoporosis or low … through menopause and worry about osteoporosis. Have low levels of vitamin D. How To Prepare In general, there's … normal range may still be normal for you. High values High levels of vitamin D can be caused by: Williams syndrome. …
Medical tests
… as severe forms of thalassemia , may cause hemoglobin A levels to be low and hemoglobin F levels to be high. Hemoglobin F (fetal hemoglobin). This … F may mean a more severe form of thalassemia. High levels of hemoglobin F may be seen in a rare condition …
Medical tests
… called serum glutamic oxaloacetic transaminase (SGOT). Low levels of AST are normally found in the blood. When body … the extent of the tissue damage. After severe damage, AST levels rise in 6 to 10 hours and remain high for about 4 … liver or another organ has been damaged. Both ALT and AST levels can test for liver damage. Why It Is Done This test …
Medical tests
… carbonic acid (H2CO3). Your kidneys and lungs balance the levels of carbon dioxide, bicarbonate, and carbonic acid in … carbonic acid (H2CO3). Your kidneys and lungs balance the levels of carbon dioxide, bicarbonate, and carbonic acid in …
Medical tests
Medical tests
… the 24 hours. Being cold can raise your catecholamine levels. Drink plenty of fluids during the 24 hours to avoid … normal range may still be normal for you. High values High levels of free catecholamines, vanillylmandelic acid (VMA), … illness, surgery, or traumatic injury, can cause high levels. Many blood pressure medicines can also cause high …
Medical tests
Medical tests
… protein in your blood. C-reactive protein measures general levels of inflammation in your body. High levels of CRP are caused by infections and many long-term … you. Results are usually available within 24 hours. High levels of CRP are caused by infections and many long-term …
Medical tests
… health problem or by a normal healing process. D-dimer levels are often higher than normal in people who have … health problem or by a normal healing process. D-dimer levels are often higher than normal in people who have …
