Urgent semi-elective intubation and ventilation should be undertaken if there is ongoing signs of shock unresponsive to 40 ml/kg of fluid resuscitation or if there is airway obstruction/loss of protective airway reflexes at any stage (cardiovascular resuscitation should occur before induction of anaesthesia)…

Airway opening manoeuvres with high flow oxygen (10-15 litre/minute via face-mask with reservoir bag) and suction secretions as needed. Consider nasopharyngeal airway if difficultly maintaining airway (insertion of oropharyngeal airway normally not possible due to clenched teeth)…

Intubate if there are life threatening features that are refractory to standard treatment i.e. silent chest, oxygen saturations <92%, cyanosis, poor respiratory effort, hypotension, altered consciousness or exhaustion...