Physicians often face difficult decisions about initiating or terminat
ing artificial feeding and hydration for seriously ill older patients.
This article presents an approach to making these decisions, using ca
se histories as illustrations. We discuss the distinctions between obl
igatory basic care and optional medical care. We consider the process
of weighing the burdens and benefits of treatment and the situations i
n which it may be ethically permissible to withhold or withdraw artifi
cial nutrition. Finally, we consider several cases in which the patien
ts' previous statements of wishes are ambiguous, and suggest courses o
f action for the physician in such situations.