they knocked me out for mine completely. the only thing i remember is the dr saying he was going to give me something to relax me, and the next thing a nurse was waking me up a few hours later telling me i had to eat.

i was really, really, reallllly anxious about the procedure - i even put it off for 9 months (even though the docs suspected i had cancer - i'm an idiot, right?). but the procedure itself was fine.

what they did for me:
- a nurse ran through my medical history again, and i mentioned some allergies i had, so she wrote them on of of those arm band thingies and put it around my wrist
- then they got me to undress and get into a hospital gown. they gave me a private room to do this.
- then i got into a bed, and after a long wait (there were a few of us needing to get the procedure done) they wheeled me in to the theatre
- the anaesthetist tapped my hand a few times and got a needle in to the back of my hand.
- then the doc introduced himself again, and said he was going to give me something to relax me, and that i needed to count backwards. but as soon as he put it in i must've been out, because i honestly just remember falling asleep. it was awesome! wish i could sleep like that every night .

essentially - you've been through the worst of it (the consultation, and the attending physical). now you just get to doze for a little while, and after they've run their tests, they'll let you know how it went.

hope this helps somewhat, googley.