Diagnosis 2. Lab examination l) fasting plasma glucose(空腹血糖) >5. 8mmol/L twice or more 2) glucose screening test糖筛查(50 g glucose) I hr postchallenge 27.8mmol/L-y oral glucose tolerance test,OGTT糖耐量Diagnosis 2. Lab examination 1) fasting plasma glucose(空腹血糖): ≥5.8mmol/L twice or more 2) glucose screening test 糖筛查 (50g glucose) 1 hr postchallenge ≥7.8mmol/L→ oral glucose tolerance test, OGTT糖耐量