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 A
Explanation
Choice A reason: To calculate BMI, the nurse needs the client's height and weight. BMI is calculated by dividing the weight in kilograms by the square of height in meters.
Choice B reason: Skinfold thickness is used to estimate body fat percentage, not BMI.
Choice C reason: Waist circumference is used as a measure of abdominal obesity, not for calculating BMI.
Choice D reason: Daily calorie intake is not required for BMI calculation; it is more relevant for dietary assessments
and weight management plans.
Correct Answer is A
Explanation
Choice A reason: To calculate BMI, the nurse needs the client's height and weight. BMI is calculated by dividing the weight in kilograms by the square of height in meters.
Choice B reason: Skinfold thickness is used to estimate body fat percentage, not BMI.
Choice C reason: Waist circumference is used as a measure of abdominal obesity, not for calculating BMI.
Choice D reason: Daily calorie intake is not required for BMI calculation; it is more relevant for dietary assessments
and weight management plans.
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