Impaired fasting glucose (IFG) is a condition characterised by elevated blood glucose levels that are higher than normal but not high enough to be diagnosed as diabetes.

IFG is diagnosed when the fasting level is 6.0-7.0 mmol/L but the two-hour level is less than 7.8 mmol/L. People with IFG have a high risk of progression to type 2 diabetes over time.

Unit 6,

Reference: Oxford Concise Medical Dictionary (9th ed) Oxford University Press 2015 ISBN-13: 9780199687817, p1678