Bieber I personally think you are on the right track. Sounds to me that you are progressing well as a young practitioner. I always wanted my students and new medics to ask these types of questions. Why do we do this and why do we do that? If we only follow what is written and never quesion the rationale then we are doomed to only be mediocre at best and mediocre in this field is absolutely unacceptable.
I agree with the others who have voiced their opinions about the Captain's decision to withhold sedation after the airway has already been secured. That to me is pretty counterproductive. You also have to consider the fact that her gagging on the ETT will cause her ICP to rise. With all of her health issues I am sure that HTN is in the mix and if it isn't it soon will be. I understand that this isn't a head injury case but knowing that she has health issues why take the chance on something else going wrong in the process.
I come from a service where RSI was a key aspect of our care. Coming from a flight service we were encouraged to RSI anyone that may put up any kind of fight due to the close proximity of the Pt's feet to the pilot. In this case, RSI would have been a strong option in my head.
Sounds again like you're on the right track, keep your head up, always keep asking what if and be a strong patient advocate always.
As an after thought I will throw this out there for you and anyone else who is reading this post.
What are you director's and your medical director's thoughts on RSI? Do they not like the idea of someone being paralyzed and then not being able to intubate? If that is the case, try looking up Suggamadex. It is the antidote to neuromuscular blockades. If Norcuron is used and you're unable to intubate. Suggamadex will reverse the effects and the patient will recover their own respiratory drive.
Just a thought for you to consider. You first few intubations sounded good to me accept your "Semi". Look up all the ways to confirm ETT placement. You will see that the ones that are known to fail due to inexperienced practitioners are the ones you were talking about. Visualizing the chords, Breath sounds and chest rise and fall. The can be deceiving to you in such a chaotic environment. Try relying on others as well like a good capnography waveform, no epigastric sounds, condensation on the tube, things like that.
I hope some of this helps! Take care and best of luck to you my friend you are doing well!