Table 2: Suggestions for diagnosis of gestational diabetes and overt diabetes in early pregnancy (<20 weeks of gestation) following metabolic surgery using capillary blood glucose monitoring (adapted from [40, 41]).

Fasting≥95 mg/dl
1 h postprandiallyIn patients after gastric bypass/bariatric surgery of unknown significance (see text)
2 h postprandially≥120 mg/dl
Overt diabetes diagnosis
Fasting≥126 mg/dl
HbA1c≥6.5%
RandomIn patients after gastric bypass/bariatric surgery of unknown significance (see text)

HbA1c values are applicable after bariatric surgery. Hypoglycaemia can also occur more than two hours after meal intake.