Glucose levels as test for diabetes

reposted from: http://www.labtestsonline.org.uk/understanding/analytes/glucose/test.html#what

High levels of glucose most frequently indicate diabetesbut many other diseases and conditions can also cause raised glucose. The following information summarizes the meaning of the test results.

Fasting Blood Glucose

GLUCOSE LEVEL	INDICATION
From 3.6 to 6.0 mmol/L	Normal fasting glucose
From 6.1 to 6.9 mmol/L	Impaired fasting glucose
7.0 mmol/L and above	Probable diabetes

Oral Glucose Tolerance Test (OGTT) 

Sample taken 2 hours after a 75-gram glucose drink.

GLUCOSE LEVEL	INDICATION
Less than 7.8 mmol/L	Normal glucose tolerance
From 7.8 to 11.1 mmol/L	Impaired glucose tolerance
Over 11.1 mmol/L	Probable diabetes