An ambulance was called against the patient’s will and she died alone in a resuscitation department

The patient, who was a doctor himself, spent a on an artificial lung ventilation device. Since he knew that the doctors would not be able to remove him from life support, he refused to take any medicines and died suffering. Such cases raise the questions who should make decisions and how to stop giving life support, what the difference is between the euthanasia and refusing medical intervention.