A nurse is administering oxygen via non-rebreather face mask. Which of the following would help facilitate ventilation?


•An elevated head of bed promotes lung expansion and can improve ventilation.

•When using a non-rebreather face mask, the flow rate should be 10-12 LPM to ensure that the reservoir bag is filled with oxygen and not with carbon dioxide exhaled by the patient.

For reference:

•Nasal cannula: 1-6 LPM. At 4 LPM, approx 32% O2 is provided.

•Simple face mask: 6-10 LPM at 40-60% O2, but must be over 5 LPM to flush expired CO2 from mask.

•Venturi "Venti" mask: 4-8 LPM at 24-40% O2 at low flow or 10-12 LPM at 50% O2 at high flow.

•Nonrebreathing mask (NRB): 6-12 LPM. Provides 95% O2 with flow rate of 10-12 LPM.

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