This fourth edition of "Health Care Ethics" provides a contemporary study of broad and major issues affecting health care and the ethics of health care from the perspective of Catholic teachings and theological investigation. It aims to help Christian, and especially Catholic, health care professionals solve concrete problems in terms of principles rooted in Scripture and tested by individual experience. Since the last edition of "Health Care Ethics", there have been many changes in the fields of health care medicine and theology that have necessitated a fourth edition. Ashley and O'Rourke have revised their seminal work to address the publication of significant documents by the Church and the restructuring of the health care system. The revised fourth edition discusses significant Church documents issued since the third edition. It includes "The Splendor of Truth" ( Veritatis Splendor), and "The Gospel of Life" ( Evangelium Vitae); "The Instruction on the Vocation of Theologians"; "The Catechism of the Catholic Church"; and, "The Revised Ethical and Religious Directives for Catholic Health Services". It examines the implications of managed care techniques. It probes such changes in the practice of medicine as the new emphasis on preventive care, the involvement of individuals in their own care, greater use of pharmaceuticals in psychiatry, and the greater role of genetics in diagnosis and prognosis. It explores the quest for more compassionate care of the dying. It updates the bibliography.