ICU Exam for agency (travel) nursing

[ohiomandy]

Has anyone ever taken an online exam to work for an agency in an ICU?

I've applied for a PRN position through an agency. The test is by a company called Prophesy, specifically tailored to ICU. Any hints as to what I should brush up on and where I could find some good study info is greatly appreciated.

background info:

I've worked for just over a year in a medical/surgical ICU (no trauma). I know I've gained tons of experience, but I'm not sure I'm ready for this type of test. I know I'm not ready for the CCRN, so I'm wondering if this test is out of my realm. My NM and several ANM's are giving me glowing recommendations for this PRN position, but I'm seriously lacking in confidence right now.