Final answer:
The statement that reflects an intrapersonal conflict is the staff nurse's uncertainty about applying for the unit manager's position or starting a family, indicating an internal struggle with personal decisions.
Step-by-step explanation:
The charge nurse should recognize that the statement reflecting an intrapersonal conflict is "I'm not sure whether I want to apply for the unit manager's position or start a family this year." This statement indicates a conflict where the staff nurse is grappling with a personal decision internally, as opposed to conflicts with others or the organization. In contrast, the other statements offered by the staff nurse reflect external conflicts; frustrations with a patient, issues with management priorities, or perceived unfairness in requesting days off are related to their interactions or relationship with other people or the system they work in.