I have been looking through my aaos Emergency care and transportation of the sick and injured book to study, and I've been using the online access code that came with it to get some extra practice. All the tests don't compare to the NREMT. I pass all the chapter pretests and I took the registry review on emtb.com and got an 88%. But on the nremt I got below passing on resuscitation, trauma, and ems ops, I passed medical and airway. Any pointers??