Online nursing assessment?

Hi,
Just a little back story first: I am patiently waiting for a critical care nurse or training slot in southern California after 8 years of stepdown, tele, PCU nursing. I want to get into an ICU and never seem to make the final cut.

I just applied for a position in a smaller area of southern CA which required only stepdown experience and they told me they are looking for a "strong ICU nurse". I hate when HR pulls that on applicants! She told me that they want to give me a 45 minute nursing skills assessment first and I agreed. Has anyone taken this computer based test before? What is on it (so I can spend quality time with refresher books). Thanks so much for any help!