The nurse is discussing various oxygen delivery systems with a newly graduated nurse who has just begun working on the medical floor. Which statement by the student nurse indicates an understanding of the different oxygen delivery systems?

  1. “A tracheostomy collar requires a flow rate of at least 6 L/minute to be effective.”
  2. “High-flow oxygen delivery systems include the venturi mask, face tent, and non-rebreather masks.”
  3. “The non-rebreather mask should receive a high enough flow rate to keep the reservoir bag completely full.”
  4. “Nasal cannulas, non-rebreather masks, simple face masks, and partial rebreather masks are examples of low-flow oxygen delivery systems.”
Number 4 is correct.
Rationale: Nasal cannulas, non-rebreather masks, simple face masks, and partial rebreather masks are examples of low-flow oxygen delivery systems. A tracheostomy collar requires a flow rate of at least 10 L/minute to maintain the proper FiO2. High-flow oxygen delivery systems include the venturi mask, face tent, T-piece, tracheostomy collar, and aerosol mask. Non-rebreather masks should have a flow rate sufficient to keep the reservoir bag two-thirds full.