title: Dementia. Legal issues in consent.
abstract: BACKGROUND
  Doctors must generally obtain a patient's consent for a medical procedure before it is undertaken. When a patient has impaired mental capacity, the doctor may be uncertain whether the patient is competent to consent and decide that consent must be obtained from someone else. recent legislation gives legal authority to people appointed by the patient, or by the state; or a relative or carer, to consent (or refuse) on behalf of the patient.
  
  
  OBJECTIVE
  This paper explains the general legal requirements to obtain consent; a how a patient's competence is assessed; and the people who may legally consent (or refuse) on behalf of an incompetent patient. A case study illustrates how the legal principles are applied in practice.
authors.affiliation: University of Melbourne, Victoria.
authors.forename: Loane
authors.initials: L
authors.lastname: Skene
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001315:Australia; D003704:Dementia / Q000175:diagnosis / Q000628:therapy*; D005260:Female; D006801:Humans; D007258:Informed Consent / Q000331:legislation & jurisprudence*; D008297:Male; D016743:Mental Competency; D018570:Risk Assessment