An involuntary admission is:

A. a patient admits himself to a mental health care facility and can leave when they desire: This describes voluntary admission, not involuntary. Voluntary patients can request discharge unless a danger is assessed. B. a person not competent to make a decision is admitted by the family or health care proxy: This is typically a substituted decision, but not the legal basis for involuntary admission, which requires meeting legal criteria like dangerousness. C. a person exhibiting behavior that is dangerous to themself or others is compelled into treatment regardless of their own desires: Involuntary admission is based on risk of harm to self or others or inability to care for oneself due to mental illness. D. a mother wants to admit her child for a fever and the doctor does not want the child admitted: This is unrelated to mental health or involuntary psychiatric admission and refers instead to a disagreement over general medical care.