State the Preparation of Patient for GTT

1. You should explain to the patient about the purpose and procedure of the test to be carried out and advise that:

a) the patient should take a daily diet with carbohydrate (150-300 gm) for 3 days preceding the test.

b) fasting is required for at least 8 - 10 hours before the test and not more than 16 hours.

c) water can be taken liberally and encourage the patient accordingly.