As a nurse, our governing body state, within our Code Of Conduct, that:
In an emergency, in or outside the work setting, you have a professional duty to provide care.
The care provided would be judged against what could reasonably be expected from someone with your knowledge, skills and abilities when placed in those particular circumstances.
And morally, never mind professionally, surely we HAVE to provide help, sure as eggs are eggs, I certainly couldn’t sit back and keep quiet if someone needed medical assistance.
So the answer is...............call for a nurse