As a new-to-the-ER nurse (previously exp'd in med/surg/peds, behavioral health, and corrections -- woohoo!), I'd like to share some links that I felt were very valuable, some are old bookmarks from nursing school and some are ones I've run across when wanting to review something or look something up to brush up on lab values, etc.
http://www.ccmtutorials.com/intro/whatis/index.htm
Critical Care medicine Tutorials -- yeah, it says Crit-care. No, you don't have to be a CCRN to utilize! There's tons of great info on Shock, Sepsis, Respiratory issues (Oxygen, PEEP, ventilation), etc. It's actually been around awhile and I think the person who created it forgot to complete it, but the stuff that IS there is wonderful.
http://library.med.utah.edu/kw/ecg/index.html
ECG / EKG learning center -- 12-step process, VERY thorough explanation of ECGs!
http://www.icufaqs.org/
Another ICU help-site but some great topics i.e. Labs, pacemakers, arrhythmias and EKGs, IVs, NG's, chest tubes, etc. LOTS of topics, all in word files for easy reading.
http://rnceus.com/abgs/abgmethod.html
Easy way to interpret Arterial Blood Gases (ABGs)! Also check out the home site,
http://rnceus.com, for a lot of topics that they provide CEUs for -- the info is free (I believe) to view, the only way you have to pay is if you want to take the test to get the CEUs. Several useful subjects are covered.
Hope someone finds at least one of those helpful besides me!
-A