My clinic was great. They came and gave me the drink and started the timer as soon as I showed up. They asked if I wanted orange or lemon lime, but recommended lemon lime. Then I had my normal appointment - tdap vaccine, weight and fundal height, Doppler to listen to baby's heart, my bp... By this point I only had half an hour to wait, so I cross stitched in the lobby until the phlebotomist came and got me. He stuck the needle in and almost immediately pulled it back out again so I thought he'd screwed up, but he was already done! And he just had me wait a few minutes and then came and told me he passed. I was shocked that the blood draw literally took seconds :)