I think the best option is to transfer the patient to their home or that of a loved one.  If I were dying, naturally or otherwise, I would prefer it that way.  Better than in an institutional setting.  The bishop would be placed in a major moral dilemma if the hospital were compelled to provide assisted suicide.  It would no longer conform as a Catholic hospital at all.    Why did you join a Catholic organization, if you are opposed to its principles?