Final answer:
When a patient with psychosis is a danger to themselves or others, they can be admitted to the hospital through a physician's order, a family request, or a nurse's request.
Step-by-step explanation:
When a patient with psychosis is thought to be a danger to themselves or others, they can be admitted to the hospital through a few different methods. One commonly used method is through a physician's order. This means that a doctor determines the need for hospitalization based on the patient's condition and risk to themselves or others. Another option is a family request, where the patient's family members can request the admission if they believe the patient is a danger. A nurse's request may also be considered, although this method is typically used in emergency situations when immediate intervention is necessary.