口服葡萄糖耐量试验(OGTT)（Oral glucose tolerance test (OGTT)）.doc

口服葡萄糖耐量试验(OGTT)（Oral glucose tolerance test (OGTT)） Oral glucose tolerance test (OGTT) is the gold standard for the diagnosis of diabetes accepted, in hyperglycemia but have not yet reached the diagnostic criteria for diabetes, to clear whether diabetes, OGTT can be used for differential diagnosis. Oral glucose tolerance test notes and methods; 1. patients should avoid cerebral infarction, myocardial infarction, trauma, surgery and other stress conditions for at least 2 weeks before receiving the test. 2., disable the various drugs that affect blood sugar, such as glucocorticoids, contraceptives, thiazide diuretics, etc., for at least 1 weeks. 3. 3 days before the test to ensure regular diet, carbohydrate intake of not less than 150 grams per day. 4. no more food should be eaten 9 hours a day before the test. The 5. day test will be 75 grams of glucose (1.75 g / kg body weight in children according to the calculation, the total does not exceed 75 grams) dissolved in 250 ~ 350 ml of warm water, 7 in the morning fasting (0 minutes before taking sugar). Venous blood glucose and urine check, check the urine after 3 ~ 5 minutes after drinking sugar, drink from the first in the beginning of time, 30 minutes, 60 minutes, 120 minutes and 180 minutes respectively. Venous blood glucose and urine glucose check check (every 30 minutes before the urine should micturition once and discard), conditions can also check blood plasma insulin and C peptide in at each time point. The significance of fasting blood glucose and oral glucose tolerance test, fasting blood glucose normal value is not greater than 110mg / dl (6.1mmol / L), and 120 minutes after taking sugar is no greater than 140mg / dl (7.8mmol / L). If the fasting blood glucose than 126mg / dl (7.0mmol / L), and taking sugar 120 minutes after the blood glucose is greater than or equal to 200mg / dl (11mmol / L) can be diagnosed with diabetes. Between normal and diabetic people, impaired glucose tolerance (IGT), pure fasting