When Working with a Patient Who Has Diabetes Mellitus, the Nurse

When working with a patient who has diabetes mellitus, the nurse reviews the results of testing for glycosylated hemoglobin ( HbA1C ) to evaluate for

A) glucose levels 2 hours after a meal.
B) circulating, nonfasting glucose levels.
C) glucose control over the past 3 months.
D) hypoglycemic episodes in the past 90 days.