High-flow nasal cannula
High-flow nasal cannula aka heated humidified HFNC or high floe nasal prongs used in cases of hypoxic respiratory failure
Tag Preoxygenation
Apnoeic oxygenation
Apnoeic oxygenation is used to extend the 'safe apnoea time' beyond that which can be achieved by preoxygenation alone
Preoxygenation
Preoxygenation is the administration of oxygen to a patient prior to intubation to extend 'the safe apnoea time'. The primary mechanism is 'denitrogenation' of the lungs, however maximal preoxygenation is achieved when the alveolar, arterial, tissue, and venous compartments are all filled with oxygen.