| Diagnostic criteria . | Classification . |
|---|---|
Fasting blood glucose ≥7 mmol/La | Type 1 DM Autoimmunity: islet cell antibodies present in the majority of individuals, e.g anti-GAD65 antibodies |
2-hour post 75-g OGTT Blood glucose ≥ 11.1 mmol/L | Type 2 DM Insulin resistance and centripetal obesity |
Random blood glucose ≥ 11.1 mmol/La | Others: Pancreatic disease, e.g. cystic fibrosis, acute or chronic pancreatitis, pancreatectomy Endocrine disease, e.g. acromegaly, thyrotoxicosis, Cushing’s syndrome, primary hyperaldosteronism, hereditary haemochromatosis |
Impaired FBG ≥6 mmol/ and 〈7 mmol/L |
| Diagnostic criteria . | Classification . |
|---|---|
Fasting blood glucose ≥7 mmol/La | Type 1 DM Autoimmunity: islet cell antibodies present in the majority of individuals, e.g anti-GAD65 antibodies |
2-hour post 75-g OGTT Blood glucose ≥ 11.1 mmol/L | Type 2 DM Insulin resistance and centripetal obesity |
Random blood glucose ≥ 11.1 mmol/La | Others: Pancreatic disease, e.g. cystic fibrosis, acute or chronic pancreatitis, pancreatectomy Endocrine disease, e.g. acromegaly, thyrotoxicosis, Cushing’s syndrome, primary hyperaldosteronism, hereditary haemochromatosis |
Impaired FBG ≥6 mmol/ and 〈7 mmol/L |
FBG, fasting blood glucose, OGTT, oral glucose tolerance test.
In the presence of symptoms compatible with DM, e.g. polydipsia, polyuria. A further fasting sample is required 4–6 weeks later if there are no symptoms present to confirm the diagnosis.
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