The purpose of this article are to describe the criteria used to selec
t organ transplant recipients, to highlight the similarities and diffe
rences in these these criteria, and to review the findings that suppor
t these criteria. Reports on criteria used in selecting heart, lung, l
iver, pancreas, and kidney recipients were reviewed in addition to rep
orts on proposed approaches to allocating scarce health care resources
. The conclusions are that criteria used for organ transplant recipien
t selection (other than medical criteria related to the diseased organ
) vary from setting to setting, organ to organ, and are modified over
time. No universal system has been adopted to guide recipient selectio
n.