Which of the Following Instructions Should Be Relayed to the Patient

Which of the following instructions should be relayed to the patient regarding a fasting blood glucose test?

A) Consume a low-carbohydrate evening meal.
B) Refrain from smoking for 12 hours before the test.
C) Minimize activity for 24 hours before the test.
D) Do not consume food or fluid (except water) for 12 hours before the test.
E) All of the above are appropriate instructions.