313 results found
Medical tests
… A bilirubin test measures the amount of bilirubin in a blood sample. Bilirubin is a brownish yellow substance found … direct bilirubin measurements. When bilirubin levels are high, the skin and whites of the eyes may look yellow … gauze pad or cotton ball is placed over the puncture site. Pressure is maintained on the puncture site briefly. Then a …
Medical tests
… When you feel stressed, these hormones increase heart rate, blood pressure, breathing rate, muscle strength, and mental … glands to release too many hormones. And that can cause high blood pressure, excessive sweating, headaches, fast …
Medical tests
… sodium and potassium levels in the body. This helps control blood pressure and the balance of fluids and electrolytes in the … stimulates the adrenal glands to release aldosterone. High levels of both renin and aldosterone are normally …
Medical tests
… strenuous exercise for at least 8 hours before your first blood sample is taken. (You can drink water before the … that isn't in the normal range may still be normal for you. High values High glucose levels may be caused by: Diabetes. … diuretics , and some medicines used to treat high blood pressure, HIV, or AIDS. Large amounts of the hormone …
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, … for only a short time. In the urine, amylase may remain high for several days. Why It Is Done A test for amylase is … urine test for amylase, be sure to drink enough fluids during the test to prevent dehydration . How It Is Done …
Medical tests
… (hCG) test is done to check for the hormone hCG in blood or urine. Some hCG tests measure the exact amount. … see if the hormone is present. HCG is made by the placenta during pregnancy. The test can be used to see if a woman is … that isn't in the normal range may still be normal for you. High values If you are pregnant, very high levels of hCG can …
Medical tests
… Test Overview Thyroid testing Thyroid hormone tests are blood tests that check how well the thyroid gland is … are needed for normal development of the brain, especially during the first 3 years of life. Intellectual disability … that may be related to your symptoms and past health. High values High thyroid hormone levels ( hyperthyroidism ) …
Medical tests
… ultrasound test uses reflected sound waves to see how blood flows through a blood vessel. It helps doctors assess … Depending on which blood vessels are being tested, a blood pressure cuff may be wrapped around one or both limbs. It … may be wrapped first around the calf and then around the thigh. The test may be done at several places on your leg. …
Medical tests
… the amount of luteinizing hormone (LH) in a sample of blood or urine. LH is produced by the pituitary gland . LH … follicle-stimulating hormone levels rise and fall together during the monthly cycle. LH also stimulates the production … with you in relation to your symptoms and past health. High values High luteinizing hormone values may mean: …
Medical tests
… Test Overview A tonometry test measures the pressure inside your eye, which is called intraocular … pressure. But it is often used as a simple way to check for high IOP and is the easiest way to test children. This type … of your eyes so that you will not feel the tonometer during the test. A strip of paper containing a dye …
