Which of the Following Guidelines Must the Patient Abide by to Properly

Multiple Choice

Which of the following guidelines must the patient abide by to properly prepare him- or herself for the GTT?

A) The patient must not eat anything for 8 hours before the GTT but should not fast for more than 12 hours before the test.
B) The patient should take cortisol 2 days before the GTT.
C) The patient needs to exercise vigorously 3 days before the GTT.
D) The patient must not eat anything for 14 hours before the GTT.