No — parental consent is always required for psychiatric treatment of minors.

It depends on the state. Many states allow adolescents to consent to their own mental health treatment above a certain age (commonly 14-16), and some allow it at any age for specific conditions. The PMHNP must determine whether the applicable state law permits this minor to consent independently.

Yes — any minor can consent to mental health treatment without parental involvement.

Only if the patient is emancipated.