Yes. Exactly that. One time, I knew it was coming. I was still trying to work, so by the time I went to the hospital I was really distended and was really nauseous. I went into the ER and told them exactly what was up. They had me wait an hour. I told them repeatedly I needed them to start an NG tube before it got to exorcist levels. I still waited.
Finally, this poor nurse takes me back. I told her I needed a bucket, not just a little emesis dish, and I needed the NG tube placed and exactly how she'd need to do it since my nose has been broken several times. She said, no one requests an NG tube, and looked at me like i was strange. She assured me she was a pro at this, but wouldn't bend it like I told her, and turn it downward as soon as it stopped going in. She told me basically "I know what I'm doing" but she failed... and all that green vomit went all over her.
I felt badly for her, but again, I had warned her and even coached her on how to get it down my throat.