A nurse is caring for a patient who begins to show escalating aggression in a mental health unit. What is the priority nursing action according to nonmaleficence?

Choice A reason: Ignoring escalating aggression is dangerous and negligent because it allows the situation to spiral out of control, potentially leading to physical harm. Nonmaleficence requires the nurse to take active steps to prevent harm, and passive observation fails to protect the patient or the surrounding milieu from violence. Choice B reason: Administering sedation without consent is a restrictive chemical intervention that should only be used after less restrictive measures have failed. While sometimes necessary for safety, it is not the immediate priority action and can pose physiological risks or legal issues if not performed within strict protocols. Choice C reason: The principle of nonmaleficence dictates that the nurse must "do no harm." Ensuring a safe environment by removing potential weapons, clearing other patients from the area, and maintaining a calm space is the priority action to prevent injury to all parties involved during a crisis. Choice D reason: Physical restraint is considered a last resort in mental health care due to the high risk of physical injury and psychological trauma. Using it as a first response violates the hierarchy of restrictive interventions and contradicts the goal of providing the least restrictive care possible for the patient.