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 D
Explanation
Choice A reason: Memory loss is not typically associated with a lack of dietary fiber. Memory loss can be related to various neurological or psychological conditions.
Choice B reason: Bleeding gums are commonly associated with vitamin C deficiency, not a lack of dietary fiber.
Choice C reason: Brittle hair can be associated with poor nutrition in general, but it is not a specific indicator of inadequate fiber intake.
Choice D reason: Constipation is a well-known symptom of inadequate fiber intake. Fiber helps to bulk up the stool
and promotes regular bowel movements.
Correct Answer is B
Explanation
Choice A reason: Having the client place their head between their knees may help with some causes of hyperventilation, but it is not a standard treatment for respiratory alkalosis.
Choice B reason: Having the client breathe into a paper bag can help to rebreathe exhaled carbon dioxide, which can
help correct the low carbon dioxide levels seen in respiratory alkalosis.
Choice C reason: Insulin is not indicated for respiratory alkalosis as it is used for the management of hyperglycemia, not for correcting acid-base imbalances.
Choice D reason: Sodium bicarbonate is used to treat metabolic acidosis, not respiratory alkalosis, and could
exacerbate the alkalosis.
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