Critical Care Handbook of the Massachusetts General Hospital

Rating:
Summary: The best Crit Care Handbook
Review: This is easily the best crit care handbook around. Well written chapters - the one on mechanical ventilation is the best I've read in a handbook - and hits most topics you need to know.
Downsides - it can use some updating, and I think most chapters can be a little more detailed. (better to have more detail than less)

Another good option would be Joseph Varon's Handbook of Practical Critical Care Medicine.

If you're going to buy a crit care handbook it should be one of these.