How are fasting glucose measurements used in the diagnosis of diabetes mellitus (DM)?

Updated: Oct 23, 2019
  • Author: Romesh Khardori, MD, PhD, FACP; Chief Editor: George T Griffing, MD  more...
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Answer

The noted values for fasting glucose measurements are based on the level of glycemia at which retinopathy, a fairly pathognomonic diabetic complication, appears. (However, evidence suggests that retinopathy may occur even in prediabetes.) Fasting glucose measurements are not as predictive for indicating macrovascular risk as are post–glucose load values. However, there are no formal recommendations for using glucose tolerance tests for this purpose.


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