Which value is NOT considered a core ethical principle in nursing?

In nursing, the core ethical principles that guide the practice include justice, trust, and confidentiality. Justice refers to the fairness in the distribution of healthcare resources and the equitable treatment of patients. Trust is essential in the nurse-patient relationship, as it fosters open communication and encourages patients to seek care. Confidentiality is a crucial aspect of patient rights, ensuring that personal health information is protected.

Proficiency, while an important aspect of a nurse's competency and skill level, is not classified as an ethical principle. It pertains more to the technical and professional abilities required to perform nursing duties effectively. Therefore, proficiency is relevant to the practice of nursing but does not fall within the framework of core ethical principles such as justice, trust, and confidentiality.