5459 - Revocation.

     § 5459.  Revocation.        (a)  When health care power of attorney may be revoked.--     While of sound mind, a principal may revoke a health care power     of attorney by a writing executed in accordance with the     provisions of section 5452 (relating to execution) or by     personally informing the attending physician, health care     provider or health care agent that the health care power of     attorney is revoked.        (b)  Reliance on health care power of attorney.--A health     care provider may rely on the effectiveness of a health care     power of attorney unless notified of its revocation.        (c)  Subsequent action by agent.--A health care agent,     knowing of the revocation of the health care power of attorney,     may not make or attempt to make health care decisions for the     principal.