"Medically inappropriate treatment" - how do we decide?

There's a good piece in the NY Times today about dialysis, when and how it should be withheld, and who should decide: "Choosing a 'God Squad,' When the Mind Has Faded" by Barron Lerner, MD. Here's how it starts:Would you want your tax dollars to pay for dialysis for a patient with irreversible brain damage? In 1972, when Congress agreed to use Medicare money to finance dialysis for patients with