A nurse is caring for an older adult client who has a terminal illness and is ventilator-dependent. The client is alert and oriented and he wants to discontinue use of the ventilator. The nurse should be aware that continued treatment against the client's wishes is a violation of which of the following ethical principles?

Fidelity refers to the principle of keeping promises and being faithful to one's commitments. It involves loyalty and maintaining trust in the nurse-client relationship. While fidelity is important, it is not the most relevant principle in the context of respecting a client's decision to discontinue treatment. Autonomy is the ethical principle that recognizes an individual's right to make their own decisions and choices regarding their healthcare. Respecting a client's autonomy means acknowledging their right to refuse or discontinue treatment, even if the healthcare team disagrees with their decision. In this case, continued treatment against the client's wishes would violate their autonomy. Justice refers to the principle of fairness and equality in the distribution of resources and care. It involves ensuring that all clients receive equitable treatment. While justice is a key ethical principle, it is not the primary issue when considering the client's wish to discontinue ventilator support. Veracity refers to the principle of truthfulness and honesty in communication with clients. It involves providing accurate and complete information to enable clients to make informed decisions. While veracity is essential, it does not directly address the issue of respecting the client's decision to discontinue treatment.