2.2.0.0 Fast­ing and 2-Hour Plas­ma Glu­cose

The FPG and 2-h PG may be used to di­ag­nose di­a­betes (Table 2.2). The con­cor­dance be­tween the FPG and 2-h PG tests is im­per­fect, as is the con­cor­dance be­tween A1C and ei­ther glu­cose-‍based test. Com­pared with FPG and A1C cut points, the 2-h PG value di­ag­noses more peo­ple with predi­a­betes and di­a­betes (9).

Table 2.2 - Cri­te­ria for the di­ag­no­sis of di­a­betes

*In the absence of unequivocal hyperglycemia, diagnosis requires two abnormal test results from the same sample or in two separate test samples.

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