I passed mine on 2nd try. First time- I was rushed and never should have taken the test. One- know where the heckthe testing center is. Two- take your time. I used the whole 3 hours! I went back and reviewed (changed a couple- I was like why in the world did I pick that?). I used the Gasparis videos, reviewed my EKG's, and used Critical care made easy book for reviews of systems before starting the cd. I studied for only 1 hr a day. Anymore than that I could'nt process! Good luck and take your time! You know the material :)