No reason the nurse should be liable
The CRNA and anesthesiologist should have recognized that the stomach needed to be decompressed before intubation.
I cannot hold the nurses responsible - if a doctor had not asked them to place the tube.
Both the Surgeon and Anesthesiologist can, and should, have placed a NGT.
There is absolutely no reason the CRNA/Anesthesiologist couldn't have placed an NGT prior to attempting intubation. That is completely, 100% on them. Patients with SBO frequently have massive bouts of vomiting. I wouldn't dream of one of them being intubated with that high a risk of aspiration present. Ridiculous.