After using a nasal cannula delivery system at 3 L/min,a patient with chronic airflow limitation (CAL)changes to a simple face mask.The nasal equipment oxygen was set at 3 L/min.How should the nurse adjust the oxygen flow for the new delivery system?

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Quizplus · Accepted Answer

When changing to a mask from a nasal cannula,the oxygen should be increased by approximately 100% to get the same concentration.Simple face masks deliver approximately the same range of concentration of oxygen as the nasal cannula.However,the nasal cannula flow rates range from 1 to 6 L,delivering 24% to 44% oxygen,whereas the simple face mask delivers 35% to 50% oxygen which is achieved with flow rates from 6 to 12 L.

After Using a Nasal Cannula Delivery System at 3 L/min,a