So anytime you have a concern ( and lack of education in your area of work is a huge safety issue ) the mantra is to "follow the chain of command "
But it sounds like you're being given patients within your capabilities?
Three things to know
1. You can ABSOLUTELY always refuse an unsafe assignment. And you should You are not just defending yourself but your patient as well. They need a nurse who is well equipped to perform her role .
2 . Every hospital I've ever worked at has a chain of command . If you have concerns such as being given a patient you aren't trained to care for - follow it.
3. Never be bullied by management. Let me say it again. If they are so toxic that you're threatened for standing up for safety then let karma come around when they have to be a patient of an inexperienced overwhelmed nurse someday and find a new job or fight them in court.
I have in fact taken an issue with staffing through the chain of command and the individual causing that issue was removed from their position