Review Question - QID 213884

A 31-year-old G1P0 woman presents for evaluation of contractions at 32 weeks of gestation. She says that she has been experiencing intermittent contractions every 2-3 hours and wanted to be evaluated to make sure that she wasn't in labor. On presentation, she is found to have a blood glucose of 235 mg/dL though she has no past history of diabetes. Chart review reveals that her blood glucose levels throughout pregnancy until week 25 were normal though she has not been seen in the last few weeks. The attending physician asks his medical student whether a hemoglobin A1C would be a good method for evaluating this patient. Which of the following is the best answer to this question?