Probably spelt it wrong, but im sure you all know what I'm talking about

Anyway, just a question, i know not everyone has one done, but i'll ask anyway!

What does it actually involve?
I heard they get a long needle and put into you belly and suck out some of the fluid. Is that right?

Sounds dangerous! Is it? I heard if you get it done theres a chance of miscarriage - like 1 in 100 chance. Is that right?? I find that really scary!!

Also, those of you who've had it - is it painful?

What is the test actually for? Is it for downs symdrome, or am i making that up?

sorry for all the Q's.