A nurse is reinforcing teaching with a newly licensed nurse about a nonrebreather mask. Which of the following
instructions should the nurse include?
The reservoir bag on a nonrebreather mask should collapse with exhalation.
A nonrebreather mask dries a patient's mucous membranes.
A nonrebreather mask should fit snugly over a patient's face.
Use a nonrebreather mask to deliver low-flow oxygen
The Correct Answer is C
Choice A reason: The reservoir bag on a nonrebreather mask should not collapse with exhalation. It is designed to maintain a continuous flow of oxygen and reserve a volume of oxygen for the patient to inhale with each breath.
Choice B reason: While high-flow oxygen can dry a patient's mucous membranes, a nonrebreather mask typically has a high oxygen flow rate, and humidification can be used to prevent drying.
Choice C reason: A nonrebreather mask must fit snugly over the patient's face to ensure that the highest concentration of oxygen is delivered and that there is minimal dilution with room air.
Choice D reason: A nonrebreather mask is used to deliver high-flow oxygen, not low-flow. It is designed to provide a high concentration of oxygen, typically around 60% to 90% FiO2.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Metabolic alkalosis is not commonly associated with COPD. It occurs when there is an accumulation
of bicarbonate or a loss of hydrogen ions.
Choice B reason: Respiratory acidosis is a common acid-base imbalance in clients with COPD. It occurs due to the retention of CO2 as a result of reduced respiratory function.
Choice C reason: Metabolic acidosis is characterized by a decrease in serum bicarbonate and is not typically a direct
result of COPD.
Choice D reason: Respiratory alkalosis occurs when there is a decrease in CO2 levels, which is the opposite of what is expected in COPD.
Correct Answer is C
Explanation
Choice A reason: Testing the balloon is important, but it is not the action to take immediately before insertion.
Choice B reason: While cleaning the urinary meatus is necessary, using one cotton swab is not sufficient for proper aseptic technique.
Choice C reason: Donning sterile gloves is essential to maintain an aseptic technique during catheter insertion to prevent infection.
Choice D reason: An oil-based lubricant should not be used as it can increase the risk of infection and is not compatible with the catheter material; a water-soluble lubricant is recommended.
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