An Air Entrainment Device Is Set to Deliver 30% Oxygen

question 19

Multiple Choice

An air entrainment device is set to deliver 30% oxygen.If back pressure is applied by water accumulating in the device distal to the entrainment port,what will happen to the FIO₂ delivered to the patient?

• A) It would decrease.
• B) It would increase.
• C) It would remain unchanged.
• D) It would increase initially, then decrease.

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