UVA SAT II importance?

<p>Hello, I am FREAKING out about these tests! I really thought I was just going to take the test cold turkey, but now I have one SAT II (math either level) this saturday.
Are SAT II used for placement or admission or what?
What if I totally bomb this test? I really can't remember so far back w/ geometry, but UVA requires me to take 3 SAT IIs. Should I be worrying or not?</p>