Nah, unless there’s some type emergency going on, you don’t have to worry about anyone but your assigned patients. Management can’t write you up for not catering to patients who aren’t under your care. If management complains, first of all it’s ridiculous, and second - it’s all talk. They don’t have shit. Direct other patients to their assigned nurse.
I don’t like being that person (“you’ll have to talk with your nurse”), but some workplaces require it due to lack of fairness and teamwork. Otherwise you get taken advantage of. So don’t feel bad.
And if management gives you shit and starts targeting you, talk to your union. Always have a paper trail. Or if no union, look elsewhere for better bosses to work for.