Jake set his mouth into a thin line. Regulus wasn't stupid, that he knew but to refuse medical treatment... gods.
"You can refuse medical treatment while you are lucid, that is correct. But unless you have some sort of written power of attorney refusing life saving techniques, while you are unconscious we will strive to save your life. We are bound by oath to do so," Jake explained, then sighed.
"But, I do not believe it will come to that. And I don't blame you for not believing me when I say that you have been deceased for as long as you have. However, Minister Malfoy will have the task in persuading you."
Jake smirked at Regulus' assessment of the Potter family, but he said nothing back.
"Rest for a while and I will return after notifying Minister Malfoy," he told Regulus. "Is there anything else I can do to make you comfortable in the meantime?"