Early Glucose Screen

I got a call from the nurse at my regular OB's office that Dr. Rinehart requested I do the one-hour glucose screen early to rule out any other complications.  Well, I failed the one-hour test!  I passed it with my pregnancies with the girls.  I'm scheduled to do the three-hour screen next Friday, June 6.  Praying it's normal--I really don't want to add any complications!