(a) A surrogate decision-maker is not subject to criminal or civil liability for consenting to medical care under this chapter if the consent is made in good faith.
(b) An attending physician, home and community support services agency, hospital, or nursing home or a person acting as an agent for or under the control of the physician, home and community support services agency, hospital, or nursing home is not subject to criminal or civil liability and has not engaged in unprofessional conduct if the medical treatment consented to under this chapter:
(1) is done in good faith under the consent to medical treatment; and
(2) does not constitute a failure to exercise due care in the provision of the medical treatment.