(a) A person described by Section 574.151 who is admitted to the inpatient mental health facility for voluntary inpatient mental health services has all of the rights provided by Chapter 576 for a person receiving voluntary or involuntary inpatient mental health services.
(b) A right assured by Section 576.021 may not be waived by the patient, the patient's attorney or guardian, or any other person acting on behalf of the patient.