(1) This section applies if—
(a) a person has made a health direction; and
(b) a doctor declares that the person has become a person with impaired decision-making capacity; and
(c) a guardian is appointed for the person under the Guardianship and Management of Property Act 1991 after the direction was made.
(2) Any power of the guardian to consent to medical treatment for the person must be exercised in a way that is consistent with the health direction.