Advance directives do not always resolve questions about the best care for patients who no longer have decision-making capacity; physicians and patient surrogates can take alternative approaches to arrive at the best care decision.
When recruiting physicians from developing countries for U.S. residency training slots there are ethical concerns that program directors and potential residents should be aware of and discuss.
One way of thinking about whether medical school candidates' personalities should influence admission is to ask the question, "Would you want this person to care for one of your loved ones?"