yep, guess so. mine requires 6 glasses of water prior to each one so that
its done on a full bladder. something about better being able to see my
uterus on the ultrasound to make sure they get the catheter close enough to
my tubes without jabbing the sides or going up inside one of them. at the
last one, because i couldn't hold it any longer they let me go - told me to
count to 5 and stop, which isn't easy when you are that full - and made me
drink another 2 cups of water without checking to see if my bladder was full
enough. then i had to empty a little again 'cause it was too full.
after 2 days of that, it took a while before i could make myself drink 1
glass of water.