Procedure

Low Flow Oxygen

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Low Flow Oxygen, Low Oxygen Delivery, Nasal Cannula, FIO2 Delivered by Nasal Cannula

  • See Also
  1. Oxygen Delivery
  2. High Flow Nasal Cannula
  • Preparations
  • Nasal Cannula
  1. Two short plastic nasal prongs
  2. Delivers 25-45% FIO2 at 1-6 L/min flow
  3. Delivers 4% Oxygen per liter flow
    1. Flow 0 liters per minute: 21% FIO2 (Room Air)
    2. Flow 1 liters per minute: 24 to 25% FIO2
    3. Flow 2 liters per minute: 28 to 29% FIO2
    4. Flow 3 liters per minute: 32 to 33% FIO2
    5. Flow 4 liters per minute: 36 to 37% FIO2
    6. Flow 5 liters per minute: 40 to 41% FIO2
    7. Flow 6 liters per minute: 44 to 45% FIO2
  4. Flow rates >4 liters per minute irritate nasopharynx
  5. Does not provide humidified oxygen typically, but humidification can be added
  6. Requires patent nares
  • References
  1. (1997) Pediatric Advanced Life Support, AHA, p. 4-5 to 4-7
  2. (2016) Fundamental Critical Care Support, SCCM, p. 45-60