Drink a 50-gram glucose solution (non-fasting), with blood sugar measured 1 hour later. if the blood sugar level result is ≥ 130 mg/dl, 135 mg/dl, or 140 mg/dl (set by the institution), then the screening test shows an increased risk for gdm..
The hba1c has strengths and shortcomings. one strength is that it’s more informative than a fasting blood glucose. fasting glucose can be elevated for a number of reasons even on a low-carb or keto diet, such a bad night’s sleep, and as noted, it’s only a one-time snapshot. hba1c is a better approximation of your blood glucose levels over.
For example, a population with a mean glucose of 150 mg/dl and an sd of 60 would have a cv of 40%. stable glucose levels are defined as a cv <36%, and unstable glucose levels are defined as cv ≥36% [e]..