75g glucose tolerance test

A 75-gram glucose tolerance test is to take 75 grams of glucose after taking a fasting blood sample from a subject, and then measure the blood sugar level at regular intervals and draw a curve to determine the blood sugar level. Abnormal results: fasting blood glucose greater than 7.0mmol / L, 2 hours after taking sugar, blood glucose ≥ 11.1mmol / L. Each urine sugar was positive and was diagnosed with diabetes. Impaired glucose tolerance (IGT) is the most important high-risk group of diabetes, with 1.5% to 10% progressing to diabetes every year. A Dutch survey showed that 13.8% of IGTs aged 50-75 years have evolved into diabetes. Basic Information Specialist classification: cardiovascular examination classification: blood examination Applicable gender: whether men and women apply fasting: fasting Analysis results: Below normal: Normal value: no Above normal: negative: The prompt is normal. Positive: Found in diabetes. Tips: For patients with gastrointestinal surgery or gastrointestinal dysfunction affecting glucose absorption, the glucose tolerance test should not be taken orally. Normal value Fasting blood glucose 3.9 ~ 6.1mmol / L, blood sugar 6.7 ~ 9.4mmol / L after the first hour of blood sugar, blood sugar ≤ 7.8mmol / L after the second hour, after the third hour, blood sugar returned to normal, each urine sugar was negative. Clinical significance Abnormal result The fasting blood glucose was greater than 7.0 mmol/L, and the blood glucose was ≥11.1 mmol/L 2 hours after taking the sugar. Each urine sugar was positive and was diagnosed with diabetes. People who need to be checked In the middle-aged population, there are people who eat more, drink more, and have more urine. Positive results may be diseases: diabetes and hypertension, pregnancy with diabetes, diabetic nephropathy, diabetes considerations Pre-intestation contraindications: For patients with gastrointestinal surgery or gastrointestinal dysfunction affecting glucose absorption, the glucose tolerance test should not be performed orally, but the intravenous glucose tolerance test (IGTT) is required. For patients with normal 0GTT but a family history of diabetes, cortisone 0GTT can be performed, but the tolerance to glucose in patients over 50 years old tends to decrease. It is not appropriate to do such tests. Requirements for inspection: Do not take in other sugars during the inspection. Inspection process 1. Stop the insulin treatment 3 days before the OGTT test. It can be used as a normal diet. The carbohydrate content in the diet should not be less than 150 grams per day (but controlled in the range of 250 to 300 grams) and maintain normal activities. 2, the next morning, take 2ml of blood on an empty stomach, anticoagulation, determine plasma glucose, which is fasting blood glucose. 3. Drink 300 ml of sugar water containing 75 grams of glucose in 5 minutes (for children, give 1,75 grams of glucose per kilogram of body weight, calculate the amount of oral glucose until 75 grams of glucose is reached), after drinking sugar water Blood was taken intravenously once every 30 minutes, 1 hour, and 2 hours, and urine was taken for qualitative test of urine sugar. Do not smoke, drink coffee, drink tea or eat during the whole test. You should sit quietly in the chair. 4. Determine the blood glucose concentration and draw a sugar tolerance curve: plot the blood glucose concentration measured each time with the corresponding time to plot the glucose tolerance curve. Not suitable for the crowd 1. Patients who have taken contraceptives, thyroid hormones, steroid hormones, etc., may affect the results of the examination and prohibit patients who have recently taken the drug history. 2, special diseases: patients with hematopoietic function to reduce disease, such as leukemia, various anemia, myelodysplastic syndrome, etc., unless the examination is essential, try to draw less blood. Adverse reactions and risks 1, subcutaneous hemorrhage: due to pressing time less than 5 minutes or blood draw technology is not enough, etc. can cause subcutaneous bleeding. 2, discomfort: the puncture site may appear pain, swelling, tenderness, subcutaneous ecchymosis visible to the naked eye. 3, dizzy or fainting: in the blood draw, due to emotional overstress, fear, reflex caused by vagus nerve excitement, blood pressure decreased, etc. caused by insufficient blood supply to the brain caused by fainting or dizziness. 4. Risk of infection: If you use an unclean needle, you may be at risk of infection.