Final answer:
De-escalation of a disoriented and verbally abusive patient is best achieved by addressing their concerns in a slow and calm manner, as this approach tends to reduce tension and maintain a therapeutic environment.
Step-by-step explanation:
To effectively de-escalate a disoriented patient who is starting to become verbally abusive, the most appropriate action would be to address their concerns in a slow and calm manner.
Shouting at the patient or using physical means may exacerbate the situation and is not recommended. It is important for caregivers to remain professional and use de-escalation techniques that promote a safe and therapeutic environment.