The Nurse Is Caring for a Patient Who Is to Have

The nurse is caring for a patient who is to have laboratory tests, including an HbA1c.Which of the following patient statements indicates teaching has been effective?

A) "If I eat something sweet the day before the test, it will show up."
B) "This test helps determine if my diabetic medications are effective."
C) "I will need to fast for 12 hours prior to the test."
D) "This test should be taken within an hour of the time I get up in the morning."