A, B - Difficult airway, Can't intubate / Can't ventilate, Laryngospasm, Bronchospasm, Aspiration

C - Adult and Paediatric cardiac arrest, Anaphylaxis, Intra-operative Myocardial Ischaemia, Sever Haemorrhage, Air / Gas embolism, Haemolytic Transfusion Reaction

E - Local Anaesthetic Toxicity, Malignant Hyperthermia, Hyperkalaemia, Airway Fire

O - Maternal collapse, Neonatal Life Support, High / Total Spinal, Post-partum Haemorrhage, Peri-partum Seizure, Amniotic Fluid embolism