I'm going to push back a little on the ICU Book. It's very good, but polarising among attendings. Some think it's too dogmatic. And it is. It's also too verbose if you already have a good foundation in physiology. Definitely worth reading
if you have the time and take some of the more "definitive" statements as being slightly less than definitive.
If you're in ICU
currently, I actually recommend The Little ICU Book, which is very high-yield and
concise. It doesn't have the MOST current guidelines, but it's got a lot packed in there in a very digestible format.
Other resources I found helpful:
1. NEJM ICU Series! A spectacular set of articles written over 2013-2014 by giants in the field.
2. Procedures:
https://www.youtube.com/channel/UCy0rtIQvoWeDwJgluiceZCA/videos (his intubation and ventilation videos are gold).
3. Dominating the vent:
http://emcrit.org/archive-podcasts/vent-part-1/
4. This is my bias as a neuro-nerd, but knowing a good coma assessment can be very valuable. Read the second chapter of Plum and Posner's Diagnosis of Stuper and Coma. Not hard to find online. Incredible read for now and later in EM rotations.
5. Be familiar with Surviving Sepsis Guidelines and ARDSNet and all that jazz, but these are covered pretty well in the above resources.