The diagnosis of diabetes mellitus is based on blood glucose and clinical symptoms. The following diagnostic criteria are recommended by the 2007 edition of the Chinese Guidelines for the Prevention and Treatment of Type 2 Diabetes.
Li Jing, Nautical Aviation Medical Center, Naval General Hospital Glycosylated hemoglobin: less than 6.0mmol/l (check the overall blood glucose changes in the past three months)
Diagnostic criteria for diabetes mellitus, impaired glucose tolerance, impaired fasting glucose (blood glucose concentration unit: mmol/l)
Diagnosis
Conditions
Venous (whole blood)
Capillaries
Venous (plasma)
Diabetes
Fasting
≥ 6.1
≥ 6.1
≥ 7.0
2 hours after taking sugar
≥10.0
≥11.1
≥11.1
Impaired glucose tolerance
Fasting
< 6.1
< 6.1
< 7.0
2 hours after taking sugar
6.7 to 10.0
7.8～11.1
7.8 to 11.1
Impaired fasting glucose
Fasting
5.6～6.1
5.6～6.1
6.1～7.0
2 hours after taking sugar
< 6.7
< 7.8
< 7.8 A few notes on diagnostic requirements
(A) Diagnosis of diabetes mellitus is confirmed.
1.With typical symptoms, fasting blood glucose ≥ 7.0 mmol/l or postprandial blood glucose ≥ 11.1 mmol/l.
2.No typical symptoms, only fasting blood sugar ≥ 7.0 mmol/l or postprandial blood sugar ≥ 11.1 mmol/l should be repeated once again, still reach the above value, can be diagnosed as diabetes.
3, no typical symptoms, only fasting blood glucose ≥ 7.0 mmol/l or postprandial blood glucose ≥ 11.1 mmol/l glucose tolerance test 2 hours blood glucose ≥ 11.1 mmol/l can be diagnosed as diabetes mellitus.
(ii) Diabetes can be excluded.
1.If the glucose tolerance 2 hours blood sugar between 7.8-11.1 mmol/l, it is impaired glucose tolerance; if the fasting blood sugar 6.1-7.0 mmol/l is impaired fasting blood sugar, neither of them is diagnosed as diabetes.
2. If postprandial glucose <7.8 mmol/l and fasting glucose <5.6 mmol/l, diabetes can be excluded.