I’m EM. I don’t know if training would be inadequate, per se, but there aren’t a lot of academic micus that will hire a non-internist even if you are competent. That being said, I believe that the ACGME requires anesthesiologists spend no more than 3 months of non-surgical icus. I don’t think 3 months is enough time to learn about weird things things like TTP, HLH, legionella, diffuse alveolar hemorrhage, etc to be competent to practice in a referral center. I think there are some programs set up so this can be blurred a little bit, but this is the exception.
For the most part, critical care is critical care is critical care - you’ll be treating hemorrhage, sepsis, renal failure, resp failure, etc in any icu. I think a well-trained intensivist should be able to take care of all bread and butter cases regardless of etiology (medicine, surgery, ct, neuro, etc), but I think that it would be hard to practice at a referral center in a specialized icu without spending a decent amount of concentrated time with that patient population.