(a) The patient’s scope of treatment shall be governed by the latest directive available.
(b) If the treatment directives of a later advance health-care directive conflict with the patient’s directives on a DMOST form, a health-care practitioner shall be informed so that the DMOST form can be modified or voided in order to reflect that patient’s later directive.
(c) If there is a conflict between the patient’s expressed oral or written directives, the DMOST form, or the decisions of the patient’s authorized representative, the patient’s last expressed oral or written directives shall be followed and, if necessary, a new DMOST form shall be prepared and executed.