328 results found
Medical tests
… waste product creatinine (say "kree-AT-uh-neen") in your blood and urine. These tests tell how well your kidneys are … creatinine level shows how well your kidneys are working. A high level may mean that your kidneys aren't working as they … and strenuous exercises. Shock. This is low blood pressure with many causes including severe bleeding and very …
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
… 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
… 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
… A chloride test measures the level of chloride in your blood or urine. Chloride is one of the most important … balance. It also helps maintain proper blood volume, blood pressure, and pH of your body fluids. Tests for sodium, … kidney or adrenal gland problems. Help find the cause for high blood pH. A condition called metabolic alkalosis can be …
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 Overview A reticulocyte count is a blood test that measures how fast red blood cells called … prematurely, such as hemolytic anemia . Also, being at high altitudes may cause reticulocyte counts to rise, to … ball over the needle site as the needle is removed. Put pressure on the site and then put on a bandage. How It Feels …
Medical tests
… measures the amount of the amino acid homocysteine in the blood. Why It Is Done A homocysteine blood test is done to: … ball over the needle site as the needle is removed. Put pressure on the site and then put on a bandage. How It Feels … with you in relation to your symptoms and past health. High values High values of homocysteine may be caused by: …
Medical tests
… ("tox screen") checks for drugs or other chemicals in your blood, urine, or saliva. Drugs can be swallowed, inhaled, … (therapeutic) range, or Above the therapeutic range, or High enough that they may be toxic. High values High levels … take a new medicine. A high level may mean that you are not taking your medicine correctly or that your body is not …
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 … develop glaucoma unless the pressure is lowered with medicines. People who have an ongoing IOP higher than 21 mm …
