Great case discussion.
Just as a learning point, there is a difference between "competence" and "capacity".
Competence = Lawyers
Capacity = Physician
Competency and the Capacity to Make Treatment Decisions: A Primer for Primary Care Physicians
"Simply put, competency refers to the mental ability and cognitive capabilities required to execute a legally recognized act rationally."
"The term
capacity is frequently mistaken for
competency. Capacity is determined by a physician, often (although not exclusively) by a psychiatrist, and not the judiciary.
Capacity refers to an assessment of the individual's psychological abilities to form rational decisions, specifically the individual's ability to understand, appreciate, and manipulate information and form rational decisions."
So with regards to this case, refer to Table 2 in this paper, which are the 7 standard questions a physician can ask to determine if patient has capacity.
If patient can answer the 7 questions appropriately, she has capacity. If she strikes out on 1, does not have capacity.
and just because she has cognitive issues, doesn't mean she doesn't have capacity:
"Contrary to popular belief among medical professionals,
patients with psychiatric conditions and cognitive impairments cannot be assumed to lack capacity to make reasoned medical decisions"
Also, any MD can determine if a patient has capacity (not just shrinks). But yes, I know we live in a CYA world...