192 results found
Medical tests
… drinking breast milk or formula. Babies with PKU need foods low in phenylalanine to prevent severe brain damage. Phenylalanine is found in most foods that have protein, such as milk, cheese, and meats. It is important to … site. Results If the heel stick screening test shows high phenylalanine levels, a blood sample is taken from your …
Medical tests
… Several tests may be done on the fluid. Cell counts. A high number of white blood cells (WBCs) in the fluid may … infection ( peritonitis ), or cancer is present. A high WBC count and a high count of WBCs called … albumin gradient (SAAG). The SAAG compares the level of protein in the fluid to the level of protein in the blood. …
Medical tests
… stimulates the adrenal glands to release aldosterone. High levels of both renin and aldosterone are normally … aldosterone is present, your aldosterone level will be high while a renin level will be low. Usually a renin … abnormal adrenal growth are suspected. How To Prepare Eat foods with a normal amount of sodium (2,300 mg per day) for …
Medical tests
… of folate and folic acid in the diet. Folate is found in foods such as liver; citrus fruits; dark green, leafy … B12 deficiency is working. See if the folate level is high enough to prevent certain birth defects. How To Prepare … that isn't in the normal range may still be normal for you. High values High levels of folate in the blood may mean that …
Medical tests
… Potassium (K) in blood. Sodium (Na) in blood. Total serum protein. Uric acid in blood. Why It Is Done A chemistry … plan or lifestyle. To look for problems, such as a low or high blood glucose level that may be causing a specific … with water the morning of the test. Do not eat high-fat foods the night before the test. Do not drink alcohol before …
Medical tests
… cortisol levels change throughout the day. ACTH is normally highest in the early morning (between 6 a.m. and 8 a.m.) and … A problem with the adrenal glands or pituitary gland. A high level of ACTH and a low level of cortisol (or low ACTH … ACTH test. Your doctor may ask you to eat low-carbohydrate foods for 48 hours before the test. Be sure to ask your …
Medical tests
… the amount of catecholamines in the blood. This causes high blood pressure, excessive sweating, headaches, fast … in the blood can change quickly, so it may be hard to find high values in a single blood sample. But a special … 24 hours. How To Prepare You may be asked to avoid certain foods and fluids for 2 to 3 days before having this test, …
Medical tests
… glands to release too many hormones. And that can cause high blood pressure, excessive sweating, headaches, fast … tremors. How To Prepare You may be asked to avoid certain foods and fluids for 2 to 3 days before the test. They … that isn't in the normal range may still be normal for you. High values High levels of free catecholamines, …
Medical tests
… a low lactate dehydrogenase (LDH) enzyme level, and a low protein level. A transudate may be caused by cirrhosis , … (PE) . If an infection is present, the exudate will have a high WBC count, a high LDH enzyme level, a high protein level, and bacteria or …
Medical tests
… A renin assay blood test is done to find the cause of high blood pressure (hypertension) . Renin is an enzyme made … aldosterone test. In some people, it may be normal to have high blood levels of both renin and aldosterone. If renin … licorice for 2 weeks before the test. Do not eat or drink foods that contain caffeine the day before the test. Natural …
