How would you treat acute respiratory failure?

If Pao2 is less than 8 kPa, administer 24% oxygen. There is no need for oxygen when Pao2 is greater than 8 kPa. Monitor blood

gases after 30 minutes. If Pa02 is rising (by I kPa), monitor blood gases hourly. If Pao2 continues to rise, administer doxapram. If, inspite of this, the patient continues to deteriorate, artificial ventilation may be called for.