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: Granola may contain ingredients like nuts and dried fruits that are high in potassium, which is not
suitable for a low potassium diet.
Choice B reason: Many salt substitutes contain potassium chloride instead of sodium chloride, and using them can increase potassium intake, which is not recommended for a client on a low potassium diet.
Choice C reason: Molasses is high in potassium, so replacing sugar with molasses when baking would not be
appropriate for someone on a low potassium diet.
Choice D reason: Orange juice is high in potassium compared to apple juice, making it an unsuitable choice for
someone on a low potassium diet.
Correct Answer is C
Explanation
Choice A reason: Memory loss is not typically associated with vitamin C deficiency. Memory loss can be related to various conditions, including neurological disorders or vitamin B12 deficiency.
Choice B reason: Brittle hair can be a sign of vitamin C deficiency due to its role in collagen production, which affects the health of hair. However, it is not as specific or common as bleeding gums.
Choice C reason: Bleeding gums are a common symptom of vitamin C deficiency. Vitamin C is essential for the maintenance of healthy connective tissue, which includes the gums. A deficiency can lead to scurvy, which manifests as bleeding gums among other symptoms.
Choice D reason: Constipation is not directly associated with vitamin C deficiency. While a healthy diet rich in vitamin C can aid digestion, constipation can be caused by a variety of factors unrelated to vitamin C intake.
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