Dunn RJ
The Basic life support page has been updated to emphasise that advanced airway techniques, when performed quickly, improve the effectiveness of chest compression. This is probably due to improved co-ordination between chest compression and ventilation.
The Packed cell transfusion page has been updated with information about the 5% (absolute) increase in infection risk associated with a liberal transfusion strategy (Hb > 9g/dL) compared to a more restrictive strategy.
The Oxygen therapy page has been updated with information about high flow nasal cannula therapy, used in infants and as apnoeic oxygenation prior to intubation.