Here are some sites you can access:
Cardiac: http://www.nurse-beat.com/index.htm
Society for Critical Care Medicine: http://www.sccm.org/index.asp
Other sites:
http://www.trauma.org/
http://ahsn.lhsc.on.ca/cat/
https://www.aacn.org/AACN/practiceAl...t?opendocument
trauma manual
blood gases manual
chest pain manual
EKG manual
Hope these help!
'Cat'