329 results found
Medical tests
… partly controls serum osmolality. Water constantly leaves your body as you breathe, sweat, and urinate. If you do not … of chemicals in your blood (serum osmolality) increases. When serum osmolality increases, your body releases ADH. … the water and the chemicals in your blood. Find out if you have severe dehydration or overhydration. Check to see if …
Medical tests
… Test Overview Celiac disease is a problem that happens when gluten in food causes your immune system to attack the lining of your small …
Medical tests
… by the adrenal glands ( Cushing's syndrome ). Normally, when the pituitary gland makes less adrenocorticotropic … cortisol levels often stay very high in people who have Cushing's syndrome. Sometimes other conditions can keep … and uncontrolled diabetes. The night before the blood test, you will take a dexamethasone pill. The next morning, the …
Medical tests
… It Feels Risks Results Test Overview Your esophagus is the tube that connects your throat to your stomach. It moves food and liquid down to the stomach. Esophagus tests can … sphincter . This may cause reflux. Weak muscle contractions when you swallow. This could slow the rate at which food or …
Medical tests
… Test Overview Body fat testing checks how much body fat you have. It may be done to find out if you have too much or too … fat at one or more places on your body. It is most accurate when a well-trained person measures fat thickness from …
Medical tests
… levels of both renin and aldosterone are normally present when the body is trying to conserve fluid and salt (sodium). When a tumour that makes aldosterone is present, your aldosterone level will be high while a renin level will … your doctor may give you the following instructions: Eat foods with a normal amount of sodium (2,300 mg per day) for …
Medical tests
… A biophysical profile (BPP) test measures the health of your baby (fetus) during pregnancy. A BPP test may include a … of pregnancy. If there is a chance that your baby may have problems during your pregnancy ( high-risk pregnancy ), … a chart. You may be asked to push a button on the machine when your baby moves or you have a contraction. This helps …
Medical tests
… the level of calcium in the blood is carefully controlled. When blood calcium levels get low ( hypocalcemia ), the … of calcium in the body depends on the amount of: Calcium you get in your food. Calcium and vitamin D your intestines absorb. …
Medical tests
… of these) has been injected into the joint. This allows your doctor to see the soft tissue structures of your joint, … about a joint. They may be used with an arthrogram or when an arthrogram does not give a clear picture of the … for this test may contain iodine. Are or might be pregnant. Have ever had a serious allergic reaction ( anaphylaxis ) …
Medical tests
… alcohol test measures the amount of alcohol (ethanol) in your body. Alcohol is quickly absorbed into the blood and … reaches its highest level about an hour after drinking. But food in the stomach may increase the amount of time it takes … breath. Alcohol has a noticeable effect on the body, even when consumed in small amounts. In large amounts, alcohol …
