How to prepare for acute/critical care NP clinical in the ER?

[christvs, DNP, RN, NP]

Hi everyone. I've been working as an RN on a med/surg/tele unit for 2 years now. I'm also an acute/critical care NP student and have just about finished my first year of the two year MSN program. I'm going to do my first NP clinical starting this August in the ER at a local hospital. I was just wondering if all of you ER NPs out there can give me some advice about how I can prepare for my ER clinical. I'm already signed up to get ACLS cerification, in addition to the BLS I already have. And I'm already telemetry certified right now. But is there anything else I should be brushing up on? I bought two little pocket guides yesterday-one is the 2007 Pharmacopeia and the other is a Differential Diagnosis pocket guide. Any advice you can give me would be very much appreciated. I am sooooo excited to start my clinical!!! Can you tell or what? :)