Former PICU nurse here. Agree with your points. However, where I have worked in the past, we always took an emergency med kit with us when we transported a patient to a different department for procedures. I get that with Pyxis systems, you can't just pull out meds and leave them in a kit. But kits can be made and stocked in the Pyxis. This is safer, requiring a second nurse witness, and more convenient for other situations when these meds are needed for a rapid intubation etc...
Maybe I haven't thought through all the consequences of having kits, but it seems like a safer practice all around.
As far as this situation in general, most of what I believe has already been said. Rushing and being pressured can cause even a knowledgeable nurse to make errors. I cannot stress enough how horrible it is that for a role as important as ours (Nurses...especially critical care), should ever be rushed and pressured with all we juggle.
Nurses cut corners all the time in order to get things done expediently. This is WRONG WRONG WRONG, but I've done it myself at times and understand the urgency one feels when in this position which is more the norm now than the exception.
Our knowledge base, capabilities, and responsibility has grown tremendously over the years. Yet, we staff as we did 20 plus years ago when there was less to know and do. Less procedures, less medications to know, less treatments and equipment for just about anything I can think of.
There most certainly were errors in this tragic situation at just about every turn, but as far as errors in general, there would be less, no doubt, if we took out rushing and pressure from the equation. When a Resource Nurse is rushing around from task to task, you know the ones with assignments are doing the same. There is just too much to do all around.