Identify and describe three major ethical theories that related to health care delivery and the four major ethical principles in health care

In 250 words, identify and describe three major ethical theories that related to health care delivery and the four major ethical principles in health care. Are the ethical theories and principles of health care addressed in the ACA? If so, give some examples. If not, how would you recommend that these theories and principles be addressed in health care reform? Be sure to cite sources to support your opinions.