As an example, I had my 5 year colonoscopy and endoscopy. I had trouble with the endoscopy as far as breathing goes but had no issues with the colonoscopy (of which I was on my side when it was done) and of course, doesn't have any proximity to collapsing of the throat, etc. that happens with apnea.
I was really upset with my doctor and the anesthesiologist as I told them of breathing problems under anesthesia (one time I quit breathing and CPR had to be done) and my doctor told me he would not do the test unless I agreed to be put under my anesthesia rather than twilight. After all I had done to prep for the test, I was not going to walk away without getting these 2 tests. Lo and behold, I had issues with the endoscopy (and to make it worse, my doctor didn't tell me and I had to find out when I requested my test results from the hospital). The very interesting thing is that the doc had me admitted to the hospital for the day to be watched. Even more interesting is that I never got a bill for my portion of the hospital stay, my part of the colonoscopy or endoscopy. I can only guess that was paid for by my doctor or the doctor told them to write it off. When I went back for my follow-up appointment, the doctor did not charge me my co-pay either. Now if I could get him to pay for the anesthesiologist that I was forced to have against my will who used propofol that I was totally against and expressed that. An anesthesiologist is not required when using twilight.
the medical records showed that I had no breathing issues when the colonoscopy was done, only with the endoscopy.