A Patient with Type 1 Diabetes Mellitus Is Scheduled for a Hemoglobin

A patient with type 1 diabetes mellitus is scheduled for a hemoglobin A1c level.What should the nurse emphasize to the patient to prepare for this test?

A) Schedule the test for first thing in the morning
B) Have the test drawn at any time during the day
C) Avoid eating and drinking anything after midnight the day before the test
D) Restrict the intake of red meat for three days before having the test