What is the most appropriate oxygen delivery device for a client with thick secretions, dry mucous membranes, or upper airway edema?
Nasal cannula.
Simple face mask.
Partial rebreather mask.
Aerosol mask.
The Correct Answer is D
Choice A rationale:
Nasal cannula delivers low to moderate concentrations of oxygen and may not be effective for a client with thick secretions, dry mucous membranes, or upper airway edema. Additionally, the nasal cannula may not provide sufficient humidification to alleviate these conditions.
Choice B rationale:
The simple face mask is not ideal for a client with thick secretions, dry mucous membranes, or upper airway edema as it may not provide enough humidification and could be uncomfortable for the patient.
Choice C rationale:
A partial rebreather mask also may not be the most appropriate choice for this client as it has a reservoir bag that may not adequately humidify the oxygen, leading to discomfort and potential worsening of dry mucous membranes.
Choice D rationale:
The aerosol mask is the most appropriate choice because it delivers humidified oxygen in the form of small aerosol particles, which can help alleviate thick secretions, moisturize dry mucous membranes, and reduce upper airway edema. This mask is beneficial for patients who require higher humidity levels to maintain airway patency and comfort.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","E"]
Explanation
The correct answer is choice a, b, and e.
Choice A rationale:
A non-rebreather mask is designed to deliver a high concentration of oxygen, often deemed the highest among low-flow systems. It achieves this through a reservoir bag that is filled with pure oxygen, which the patient breathes in without the dilution of room air.
Choice B rationale:
This mask has one-way valves that prevent the patient from rebreathing exhaled carbon dioxide. The exhaled air exits through side ports, ensuring that only oxygen from the reservoir is inhaled.
Choice C rationale:
While a non-rebreather mask delivers a high concentration of oxygen, it does not provide a consistent and precise oxygen delivery compared to devices like a Venturi mask, which are designed to deliver a specific and constant oxygen concentration.
Choice D rationale:
The design of a non-rebreather mask does not allow room air to enter through the exhalation ports. The one-way valves are there to ensure that exhaled air does not enter the reservoir bag and that room air does not mix with the oxygen being inhaled.
Choice E rationale:
By delivering a high concentration of oxygen and preventing the rebreathing of exhaled gases, a non-rebreather mask minimizes the risk of carbon dioxide retention, which can be a concern with other oxygen delivery systems that allow for the rebreathing of a portion of exhaled air.
In summary, the non-rebreather mask is advantageous for its ability to deliver a high concentration of oxygen and prevent the rebreathing of exhaled air, which also minimizes the risk of carbon dioxide retention. It is not designed for precise oxygen delivery, nor does it allow the mixing of room air during inhalation.
Correct Answer is B
Explanation
Choice A rationale:
Increasing the flow rate of oxygen may not be the priority action because the patient's shortness of breath could be due to a problem with the mask itself, rather than the amount of oxygen being delivered. Before making any adjustments to the oxygen flow rate, it is essential to assess the equipment's integrity.
Choice B rationale:
This is the priority action because a partial rebreather mask relies on the patient's exhaled breath to partially fill the reservoir bag. If the mask bag does not remain inflated during both inspiration and expiration, the patient may not be receiving the appropriate oxygen concentration, leading to increased shortness of breath. Checking the mask bag ensures that the mask is functioning correctly and delivering the intended oxygen concentration.
Choice C rationale:
Switching the patient to a non-rebreather mask for higher oxygen delivery is not the priority action in this scenario. The non-rebreather mask is used when high oxygen concentrations are required, such as in emergencies or when a patient's condition requires immediate intervention. However, the priority at this moment is to assess the current equipment's effectiveness before considering a change in oxygen delivery method.
Choice D rationale:
Reassuring the patient that shortness of breath is common with this type of mask is not appropriate without first addressing the issue at hand. The nurse should first assess the mask's functionality to ensure it is working correctly and providing the appropriate oxygen concentration before addressing the patient's concerns.
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