A nurse is checking a client's ventilator settings. The nurse should understand that positive end- expiratory pressure has which of the following purposes?
To deliver a set tidal volume
To provide positive airway pressure during inspiration
To control the rate of ventilations
To prevent alveolar collapse
The Correct Answer is D
Positive end-expiratory pressure (PEEP) is a mode of mechanical ventilation that maintains a positive pressure in the airways at the end of expiration, preventing alveolar collapse and improving oxygenation. PEEP does not affect tidal volume, inspiratory pressure, or ventilation rate, which are determined by other ventilator settings.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice a.This response may come across as challenging or confrontational. While the nurse is asking for more information, the phrasing could inadvertently put the client on the defensive. It doesn't validate the client's feelings and may not encourage a productive dialogue.
- Choice b. “Suggesting peer support or mentorship from someone who has gone through a similar experience could be beneficial in some situations, as it may help the client feel less isolated.
- Choice c. “Most people can adjust following this surgery.” may be true, but it does not acknowledge the client’s individual experience and feelings. It may also sound dismissive or minimizing of the client’s challenges.
- Choice d. “You are upset. We can talk about this later.” may be intended to give the client some space, but it does not convey empathy or support. It may also make the client feel rejected or ignored.
Correct Answer is B
Explanation
The Ssegment is the portion of an electrocardiogram (ECG) that represents early ventricular repolarization, which occurs after ventricular contraction and before ventricular relaxation. The Ssegment can be elevated or depressed in cases ofmyocardial infarction (MI), indicating ischemia or injury to the myocardium due to reduced blood flow or oxygen supply.
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