Pellegrino has argued that end-of-life decisions should be based upon
the physician's assessment of the effectiveness of the treatment and t
he patient's assessment of its benefits and burdens. This would seem t
o imply that conditions for medical futility could be met either if th
ere were a judgment of ineffectiveness, or if the patient were in a st
ate in which he or she were incapable of a subjective judgment of the
benefits and burdens of the treatment. I argue that a theory of futili
ty according to Pellegrino would deny that latter but would permit som
e cases of the former. I call this the ''circumspect'' view. I show th
at Pellegrino would adopt the circumspect view because he would see th
e medical futility debate in the context of a system of medical ethics
based firmly upon a philosophy of medicine. The circumspect view is c
hallenged by those who would deny that one can distinguish objective f
rom subjective medical judgments. I defend the circumspect view on the
basis of a previously neglected aspect of the philosophy of medicine
- an examination of varieties of medical judgment. I then offer some p
ractical applications of this theory in clinical practice.