High flow, high concentration oxygen should be given to any acutely dyspnoeic or hypoxaemic patient until accurate titration can be performed using arterial blood gas analysis.

In general, maintain SaO2 >90%, though preferably >95%. Compromises may need to be made during acute on chronic hypoxaemic respiratory failure, or prolonged severe ARDS, when lower values may suffice provided tissue oxygen delivery is maintained.

All patients placed on mechanical ventilation should initially receive a high FIO2 until accurate titration is performed using arterial blood gas analysis.

Apart from patients receiving hyperbaric O2 therapy (e.g. for carbon monoxide poisoning, diving accidents), there is no need to maintain supranormal levels of PaO2.

0 0

Post a comment