A nurse is caring for a client diagnosed with adult respiratory distress syndrome (ARDS) and being treated with positive end expiratory pressure (PEEP). How does PEEP benefit the client?
It decreases trapped oxygen in the alveoli.
It promotes independent breathing efforts.
It keeps the airways and small lung spaces open.
It facilitates weaning off the mechanical ventilator.
The Correct Answer is C
Choice A rationale
PEEP does not decrease trapped oxygen in the alveoli. Instead, it helps to increase the volume of gas remaining in the lungs at the end of expiration, which can improve oxygenation.
Choice B rationale
PEEP does not directly promote independent breathing efforts. It is a mode of mechanical ventilation used to support a patient’s breathing.
Choice C rationale
PEEP keeps the airways and small lung spaces open by increasing the pressure in the lungs at the end of expiration. This can prevent alveolar collapse and improve oxygenation in patients with conditions like ARDS23.
Choice D rationale
While PEEP can be used in the process of weaning a patient off mechanical ventilation, its primary benefit is not facilitating weaning. It is used to improve oxygenation and prevent alveolar collapse.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Ambulation is a general measure that can help improve overall lung function by promoting deep breathing, coughing, and mobilization of secretions. However, it is not the primary measure to prevent atelectasis.
Choice B rationale
Oxygen therapy is used to treat hypoxia, which can be a result of atelectasis. However, it does not directly prevent the development of atelectasis.
Choice C rationale
Incentive spirometry is a first-line measure to prevent atelectasis. It encourages deep breathing, which helps keep the alveoli inflated and can prevent them from collapsing, thus preventing atelectasis.
Choice D rationale
Increasing oral fluid intake can help to thin secretions, making them easier to mobilize. However, it is not the primary measure to prevent atelectasis.
Correct Answer is C
Explanation
Choice A rationale
A never event refers to a particularly shocking medical error (such as wrong-site surgery) that should never occur. A surgical site infection, while unfortunate, does not fall into this category.
Choice B rationale
A near miss refers to an event that could have had adverse consequences but did not, either by chance or timely intervention. In this case, the client did experience an adverse consequence (the infection), so this term does not apply.
Choice C rationale
An adverse event is an injury caused by medical management rather than the underlying disease. In this case, the surgical site infection that developed after the knee replacement surgery can be considered an adverse event.
Choice D rationale
A sentinel event is a specific type of unexpected occurrence involving death or serious physical or psychological injury. While serious, a surgical site infection requiring prolonged antibiotic therapy and wound care does not typically fall into this category.
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