Final answer:
Utilitarianism is the ethical framework that would most likely be used to arrive at the nurse's decision to work overtime in spite of previous social plans.
Step-by-step explanation:
The ethical framework that would most likely be used to arrive at the nurse's decision to work overtime in spite of previous social plans is utilitarianism.
Utilitarianism is an ethical theory that focuses on maximizing overall happiness or utility. According to utilitarians, an action is considered morally right if it produces the greatest amount of happiness for the greatest number of people.
In this case, the nurse's decision to work overtime may be based on the belief that it would benefit a larger group of people, such as patients in need of care, and therefore maximize overall happiness or utility.