281 results found
Medical tests
… test measures the amount of this enzyme in a sample of blood taken from a vein or in a sample of urine. Normally, only low levels of amylase are found in the blood or urine. But … taken from a vein or in a sample of urine. Normally, only low levels of amylase are found in the blood or urine. But …
Medical tests
… of mucus. The stool may be examined for hidden (occult) blood, fat, meat fibres, bile , white blood cells , and sugars called reducing substances. The pH of the stool also … a barium enema or upper gastrointestinal series (barium swallow). Barium can interfere with test results. Travelled in …
Medical tests
… Test Overview A lactic acid test is a blood test that measures the level of lactic acid made in … into water and carbon dioxide. When the oxygen level is low, carbohydrate breaks down for energy and makes lactic … in a person who takes metformin (Glucophage) to control diabetes when heart or kidney failure or a severe infection …
Medical tests
… Test Overview An iron test checks the amount of iron in the blood. Iron (Fe) is a mineral needed for hemoglobin, the … pregnancy, during breastfeeding, or at times when there are low levels of iron in the body (such as after bleeding). The … capacity (TIBC), and transferrin saturation. High and low values The values for serum iron, total iron-binding …
Medical tests
… Information Test Overview A parathyroid hormone (PTH) blood test measures the level of parathyroid hormone in the … the thyroid gland . If the blood calcium level is too low, the parathyroid glands release more PTH. This causes … process is reversed. PTH levels that are too high or too low can cause problems with the kidneys and bones and cause …
Medical tests
… the level of adrenocorticotropic hormone (ACTH) in the blood to check for problems with the pituitary gland and … in the early morning (between 6 a.m. and 8 a.m.) and lowest in the evening (between 6 p.m. and 11 p.m.). ACTH … glands or pituitary gland. A high level of ACTH and a low level of cortisol (or low ACTH and high cortisol levels) …
Medical tests
… (SPEP) test measures specific proteins in the blood to help identify some diseases. Proteins are … kidney disease High beta globulin: Very high cholesterol; low iron (iron-deficiency anemia) High gamma globulin: … infection; liver disease; some forms of cancer Low values Low values may be caused by many conditions. Some …
Medical tests
… checks the level of this male hormone (androgen) in the blood. Testosterone affects sexual features and development. … of testosterone in the body. When the testosterone level is low, the pituitary gland releases a hormone called … Before puberty , the testosterone level in boys is normally low. Testosterone increases during puberty. This causes boys …
Medical tests
… of immunoglobulins, also known as antibodies , in your blood. Antibodies are substances made by the body's immune … called an autoimmune disease . If your immune system makes low levels of antibodies, you may have a greater chance of … You can be born with an immune system that makes low levels of antibodies, or your system may make low levels …
Medical tests
… help nerves work, make muscles squeeze together, help blood clot, and help the heart to work. Almost all of the … is carefully controlled. When blood calcium levels get low ( hypocalcemia ), the bones release calcium to bring it … As blood calcium levels get high, phosphate levels get low, and the opposite is also true. It is important to get …
