Concern. Compassion. Doubt. Despair. Anger. Hope. Imagine juggling these feelings every day in a situation where your ability to manage them could be the difference between life and death.   For Dr Chris Luke, a consultant in emergency medicine, these experiences are an intrinsic part of the job - ranging from rage at a system that often leaves vulnerable people waiting anxiously, to the incomparable satisfaction of relieving patients' suffering and distress and making a real difference in people's lives and in society.   Here, Dr Luke reveals his own rollercoaster journey from orphanage boy to one of the leading emergency physicians in the country. Luke's recollections and reflections on a life spent on the frontline - grappling with his own health issues, burnout and sometimes despair at a dysfunctional system - make for compelling reading.   A Life in Trauma is a frank, remarkable account of a career spent helping others, sometimes at a painful personal cost, and ultimately offers a positive outlook on the potential of Ireland's healthcare system in the future.