NCLEX-RN
NCLEX RN Practice Questions Exam Cram Questions
Extract:
Question 1 of 5
Which oxygen delivery system would provide the highest concentrations of oxygen to the client?
Correct Answer: C
Rationale: The correct answer is the non-rebreather mask. This oxygen delivery system has a one-way valve that prevents exhaled air from entering the reservoir bag and one or more valves covering the air holes on the face mask itself to prevent the inhalation of room air but allow exhalation of air. When a tight seal is achieved around the mask, up to 100% of oxygen is available.
Choice A, the Venturi mask, delivers precise oxygen concentrations but not as high as the non-rebreather mask.
Choice B, the partial rebreather mask, allows the client to rebreathe some exhaled air, resulting in lower oxygen concentrations than the non-rebreather mask.
Choice D, the simple face mask, delivers low to moderate oxygen concentrations and is not designed to provide the highest concentrations like the non-rebreather mask.
Question 2 of 5
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Question 3 of 5
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Question 4 of 5
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Question 5 of 5
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