Partial rebreathing masks deliver what FIO2 at what liter flow?
a. 0.35 to 0.50 at 4-5 L c. 0.50 to 0.80 at 6-8 L
b. 0.40 to 0.60 at 6-8 L d. 0 50 to 1.00 at 12-15 L
ANS: B
A partial rebreathing mask can deliver an FIO2 of 0.40 to 0.60 with oxygen flows of 6 to 8 L/min. The actual percentage of oxygen delivered is also influenced by the patient's ventilatory pattern.
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