And my doctor didn't tell me to fast, she actually recommended I eat something before so I wouldn't get light headed. I was a little nervous cause I'd heard of some women passing out and/or throwing up but I didn't feel sick at all, just like I was having a huge sugar rush haha.
I just went in they gave me the drink which was in a mini water bottle type container and tasted like super sugary flat Sprite, they had me drink that in 5 mins or less then after an hour took a couple vials of blood and I was done! Got the results a few days later.
You have to drink a sugary drink within 5 minutes then an hour after they prick your finger and check your levels. If you fail the 1hr you have to do a 3hr. Some doctors make you fast before