An 80-year-old female patient with congestive heart failure and moderate dementia requires elective knee replacement surgery. Surgeon (Dr. Omar) and anesthesiologist (Dr. Hasan), however, considered her to be too high of a risk for surgery. Later in the week, surgeon (Dr. Mahmood), who practices with surgeon (Dr. Omar), has a different anesthesiologist approve the patient for surgery even though the patients family doctor expresses extreme concern regarding the patient.
On the morning of surgery, the patient suffers cardiac arrythmias, which the nurse in the preoperative waiting area notes in the chart. The Nurse spoke with Her Husband on the bedside and she realizes that he is unaware of the conflict between the surgeons involved with the case. Surgeon (Dr. Mahmood) is scheduled to go for a vacation next week, and he is on a hurry to perform the surgery before leaving. The nurse discusses the patients unstable cardiac status with the (Dr. Mahmood) who listened to her but proceeded with the surgery anyway.
The patient suffers a cardiac arrest during surgery. She is resuscitated and transferred to the intensive care unit, but she dies two days later.

What are some of the ethical issues in this case?
Did the Nurse Do the right thing? what would you have done??