abnormal oral glucose tolerance test

The abnormal oral glucose tolerance test (OGTT) is a method for examining the blood sugar regulation function of the human body. After a certain amount of glucose is taken by a normal person, the blood glucose concentration temporarily increases (generally does not exceed 8.9 mmol/L), but within 2 hours, the blood glucose concentration can be restored to the normal fasting level. After taking a certain amount of glucose, blood sugar and urine sugar are measured at intervals, and blood glucose levels and presence or absence of urine sugar are observed, which is called a sugar tolerance test. Basic Information Specialist classification: growth and development examination classification: blood examination Applicable gender: whether men and women apply fasting: fasting Tips: You must keep an empty stomach before checking. Normal value Fasting blood glucose: 6.1 mmol / L (110 mg / dl); Oral glucose: peaked at 30min~60min, peaked at 11.1mmol/L (200mg/dl); at 120min, it returned to normal level, ie below 7.8mmol/L (140mg/dl). Clinical significance Abnormal result 1. Fasting blood glucose ≥7.0mmol/L (126mg/dl); peak delay, often after 1 hour, peak ≥11.1mmol/L (200mg/dl); 120min can not return to normal level, ie >7.8mmol /L (140mg/dl) The blood glucose level 2 hours after taking sugar is the most important indicator to help diagnose early diabetes. 2. In non-pregnant adults, fasting blood glucose is 6.11 ~ 7.0mmol / L (110 ~ 126mg / dl), 120min blood glucose level is between 7.8 ~ 11.1mmol / L (140 ~ 200mg / dl). This is a slight decrease in sugar tolerance. 3. Flat sugar tolerance curve, fasting blood glucose level is normal; no blood sugar rises in normal form after sugar load. There is no peak blood sugar, the curve is low, and the blood sugar can be restored to the original value in a short period of time (generally within 1 hour), which is an increase in glucose tolerance. 4. Store the delayed sugar tolerance curve, the blood sugar level rises sharply after taking the sugar, the peak appears early, and exceeds 11.1mmol/L, and the 2h value is lower than the fasting level, which is the increase of reactive insulin secretion, further causing the utilization of extrahepatic tissue. Glucose is accelerated. People who need to be examined: middle-aged people, people who have more food, more drinks, and more urine. Low results may be diseases: considerations for diabetes Contraindications before examination: Must be kept fast before inspection. Requirements for inspection: Do not take in other sugars during the inspection. Inspection process Vascular blood collection was used for testing. Before venous blood collection, carefully check that the needle is securely installed and that there is air and moisture in the syringe. The needle used should be sharp, smooth, ventilated, and the syringe should not leak. Firstly, the skin was disinfected from the inside to the outside and clockwise from the selected venipuncture with a 30g/L iodine swab. After the iodine was volatilized, the iodized trace was wiped out in the same way with a 75% ethanol swab. Fix the lower end of the venipuncture site with the thumb of the left hand, hold the syringe syringe with the thumb and middle finger of the right hand, and fix the needle lower seat with the index finger, so that the bevel of the needle and the scale of the syringe are upward, and the needle is inclined along the vein to make the needle and the skin obliquely penetrate the skin at an angle of 30°. Then, through the vein wall, enter the venous cavity forward at an angle of 5°. After seeing the blood return, the needle will be probed into the spot to avoid the needle slipping out when the blood is collected; but it is not possible to use a deep puncture to avoid hematoma, and immediately remove the cuff. Needle plug can only be pumped out, can not be pushed in, so as to avoid injecting air into the vein to form a gas plug, causing serious consequences. Remove the syringe needle and slowly inject the blood into the anticoagulation tube along the tube wall to prevent hemolysis and foam. 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.