329 results found
Medical tests
… Information Test Overview A parathyroid hormone (PTH) blood test measures the level of parathyroid hormone in the … Also, vitamin D is converted to a more active form, causing the intestines to absorb more calcium and phosphorus. If the calcium level is too high, the parathyroid glands release less PTH, and the whole …
Medical tests
… An ammonia test measures the amount of ammonia in the blood. Most ammonia in the body forms when protein is broken … 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 …
Medical tests
… Test Overview A lactic acid test is a blood test that measures the level of lactic acid made in … 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, …
Medical tests
… measures the amount of prostate-specific antigen in the blood. PSA is released into the blood by the prostate , … done to: Screen for prostate cancer. If your PSA level is higher than expected, your doctor may suggest other tests, … such as an enlarged prostate and prostatitis, can cause high PSA levels. Check if cancer may be present when results …
Medical tests
… (AST) test measures the amount of this enzyme in the blood. AST is normally found in red blood cells , liver , … 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 …
Medical tests
… checks the level of this male hormone (androgen) in the blood. Testosterone affects sexual features and development. … levels vary throughout the day. They are usually highest in the morning and lowest in the evening. Why It Is … testing. See whether a high level of testosterone is causing a boy younger than age 10 to have early signs of …
Medical tests
… less is found in the urine. Kidney problems can cause high or low levels of phosphate in the urine. High levels of phosphate in the urine also may be caused by … not get toilet paper, pubic hair, stool (feces), menstrual blood, or anything else in your urine sample. How It Feels …
Medical tests
… A CA-125 test measures the amount of this protein in the blood. CA-125 is used as a tumour marker , which means the … may do a CA-125 test to find out where the cancer started. High levels of CA-125 are a strong sign that the cancer … can increase CA-125 levels too. Experts do not recommend using the CA-125 test as a screening test for ovarian cancer …
Medical tests
… the amount of follicle-stimulating hormone (FSH) in a blood sample. FSH is produced by the pituitary gland . In … 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 …
Medical tests
… Information Test Overview An alpha-fetoprotein (AFP) blood test checks the level of AFP in a pregnant woman's … , ovaries , stomach, pancreas , or liver—are present. High levels of AFP may also be found in Hodgkin disease , … and then it slowly decreases. Values are generally slightly higher for black women than they are for white women. Values …
