Nurse-
Here's the Navy's PRT standards:
http://www.navy-prt.com/
The choice on which branch is always a tough one. I could give you the Navy's role in ER/ Trauma, but would have no insight for the Army. There's lots to tell both good and bad. You can do a search using my username and find lots of discussion on the topic. If you want, you can give me a call (304-433-1580)and we could discuss it too, talked to several others via phone before. I'm normally captive in my vehicle on the drive home from 1500-1700, M-F Eastern time and that's the easiest time for me to talk. Got 3 kids and married, so harder to talk when I'm home. It's just hard to explain everything in typing, but it's up to you. You can private message me to with any questions. Good luck.
LCDR Dan