Diagnosis of diabetes mellitus.
The diagnosis of diabetes mellitus is based on blood glucose and clinical symptoms.
Glycosylated hemoglobin: less than 6.0 mmol/l (check the overall blood glucose changes in the last three months)
Diagnostic criteria for diabetes mellitus, impaired glucose tolerance, impaired fasting glucose (blood glucose concentration in 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
6.7～10.0
7.8～11.1
7.8～11.1
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 the diagnostic requirements
(I) Diagnosis of diabetes mellitus is confirmed.
1.With typical symptoms, fasting blood glucose ≥7.0mmol/l or postprandial blood glucose ≥11.1mmol/l.
2.No typical symptoms, only fasting blood sugar ≥7.0mmol/l or postprandial blood sugar ≥11.1mmol/l should be repeated once again, still reach the above value, can be diagnosed as diabetes.
3, no typical symptoms, only fasting blood sugar ≥ 7.0mmol/l or postprandial blood sugar ≥ 11.1mmol/l glucose tolerance test 2 hours blood sugar ≥ 11.1mmol/l can be diagnosed as diabetes.
(ii) Diabetes can be excluded.
1.If the glucose tolerance 2 hours blood sugar between 7.8-11.1mmol/l, it is impaired glucose tolerance; if the fasting blood sugar 6.1-7.0mmol/l is impaired fasting blood sugar, neither of them is diagnosed as diabetes.
2. If postprandial blood glucose <7.8mmol/l and fasting blood glucose <5.6mmol/l can exclude diabetes mellitus.