I think you're setting this up as a "just following orders" argument on the part of the NP, which justifiably should be shot down. But this isn't just her following orders, it's her asking for an opinion on something outside of her knowledge. Just because she had a gut feeling that he was wrong doesn't make her culpable. _Nurses should accept the opinions of doctors in regard to diagnoses because the doctors have specifically trained for this to a much greater extent than nurse practitioners._
It seems to me that if NPs are incapable of making (at least some) correct diagnoses and must defer to the expertise of a supervising doctor, then they cannot also be responsible for the doctor being incorrect.
Either they are trained well enough to make the decision on their own (which would mean the NP shouldn't need permission for this patient to be admitted) or the doctor is actually the person who is responsible for the patient's well-being.
