A nurse is caring for a patient who is receiving oxygen therapy via non-rebreather mask at 15 L/min. The nurse should recognize that this device has which of the following advantages?(Select all that apply)
It delivers the highest concentration of oxygen among low-flow systems.
It prevents the patient from rebreathing exhaled air.
It provides consistent and precise oxygen delivery.
It allows room air to enter through exhalation ports.
It minimizes the risk of carbon dioxide retention.
Correct Answer : A,B,E
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
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.
Correct Answer is A
Explanation
A humidifier.
Choice A rationale:
A humidifier is necessary to prevent complications in a patient receiving oxygen therapy via a tracheostomy collar. Oxygen delivered through a tracheostomy can dry out the airways and cause discomfort and potential complications. Adding humidity helps maintain airway moisture and prevents drying of the mucous membranes, reducing the risk of mucus plugs and irritation.
Choice B rationale:
A water seal is not necessary for a patient receiving oxygen therapy via a tracheostomy collar. Water seals are used in chest drainage systems to prevent air from entering the pleural space, but they are not relevant in this scenario.
Choice C rationale:
A suction catheter is used to clear secretions from the airway but is not directly related to preventing complications with oxygen therapy via a tracheostomy collar.
Choice D rationale:
A chest tube is not needed for a patient receiving oxygen therapy via a tracheostomy collar. Chest tubes are inserted to drain fluid or air from the pleural space, which is not applicable to this situation.
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