there's a neat iPad app that lists all of the preventative medicine tests you can order based on age, gender, tobacco use, sexual historym etc..
it's free.
it's called the AHRQ ePSS
Check it out.
Just don't sweat preventative medicine all that much. It's not a major player on these tests.
As long as you know colonoscopies initial screening (the follow up intervals depending on the findings is more for IM residency to know), mammography, Pap smear, indications for the Pneumoccoccal and influenza vaccines, you should be good for most questions you'll run into.