A 30-year-old recreational diver is brought by ambulance to your small coastal ED. He collapsed shortly after emerging from the water and suffered a generalised seizure lasting 2–3 minutes. On examination, he is drowsy with right-sided hemiparesis. The nearest tertiary hospital is 300km away by road. Vital signs:

  • HR 110
  • BP 90/50
  • GCS 11 (E4V2M5 - not moving right arm)
SaO2 89% room air

Decompression illness

1. List (2) diagnoses for this patient and a unifying aetiology. 2 marks

2. Briefly outline your management of this patient. 4 marks

3. List (3) possible methods of retrieval for this patient and give (1) advantage and (1) disadvantage of each. 6 marks