149 results found
Medical tests
… severe damage, AST levels rise in 6 to 10 hours and remain high for about 4 days. The AST test may be done at the same … for you. Results are usually available within 12 hours. High values High levels of AST may be caused by: Liver damage from …
Medical tests
… more calcium and phosphorus. If the calcium level is too high, the parathyroid glands release less PTH, and the whole process is reversed. PTH levels that are too high or too low can cause problems with the kidneys and … that isn't in the normal range may still be normal for you. High values High PTH levels may be caused by: A parathyroid …
Medical tests
… failure. Check the level of ammonia in a person receiving high-calorie intravenous (IV) nutrition (hyperalimentation). … that isn't in the normal range may still be normal for you. High values High levels of ammonia in the blood may be caused by: Liver …
Medical tests
… creatinine level shows how well your kidneys are working. A high level may mean that your kidneys aren't working as they … on the amount of muscle tissue you have. Men generally have higher creatinine levels than women. Creatinine clearance A … levels to rise more than creatinine levels. This causes a high BUN-to-creatinine ratio. Kidney disease or blocked …
Medical tests
… test measures the amount of this enzyme in a blood sample. High amounts of lipase may be found in the blood when the … that isn't in the normal range may still be normal for you. High values A high lipase level may be caused by: Diseases of the pancreas …
Medical tests
… insulin so that your blood glucose levels do not get too high. Blood glucose levels that remain high over time can damage your eyes, kidneys, nerves, and … that isn't in the normal range may still be normal for you. High values You may have diabetes. To make a diagnosis of …
Medical tests
… for energy and makes lactic acid. Lactic acid levels get higher when strenuous exercise or other conditions—such as … oxygen throughout the body. Lactic acid levels can also get higher when the liver is severely damaged or diseased, … because the liver normally breaks down lactic acid. Very high levels of lactic acid cause a serious, sometimes …
Medical tests
… of FSH varies throughout a woman's menstrual cycle and is highest just before she releases an egg (ovulates). In men, … with you in relation to your symptoms and past health. High values High FSH values in a woman may mean: A genetic disease is …
Medical tests
… by the kidneys and passes out of the body in the urine. A high level of phosphate in the blood is usually caused by a … at the puncture site. Results Phosphate levels are usually higher in children than in adults. That's because of the … that isn't in the normal range may still be normal for you. High values High phosphate levels may be caused by: Some …
Medical tests
… tract . Sometimes a test for gastrin is done after eating a high-protein diet or after receiving an injection of the … that isn't in the normal range may still be normal for you. High levels High gastrin levels may be caused by: Zollinger-Ellison …
