A 36-year-old female is brought into the Emergency Department after being found unconscious in her car. She was parked in her home garage with the engine still running. Her vital signs are:

  • HR 114 reg
  • BP 125/70
  • Sats 95%RA
  • GCS 10
  • Temp 37.2
You are concerned for carbon monoxide poisoning.

1. Outline clinical or biochemical findings in the ED which would support this diagnosis. 4 marks

2. List further important investigations and rationale for each. 4 marks

3. State pros and cons of hyperbaric oxygen therapy in patients with CO poisoning. 4 marks