Yes, I think so, not having done it yet. I do think so, because it would be based on the same principles of the person understanding the facts, applying those facts to their situation, reasoning pros and cons, manipulating that information and then considering alternatives and being able to communicate that choice, and making sure that it's being done without coercion.
I think it would be eminently possible to do, but I also think that if it were implemented, it would be important, as part of this, to include education for clinicians and for physicians and nurse practitioners who would be in these roles to ensure that they have the training to adapt their existing expertise on capacity assessments to an advance request.