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
The nurse should contact the local Department of Health and Human Services for the client, as this agency may be able to provide assistance with heating costs or other resources for low-income individuals.
Older adults are at increased risk of hypothermia, which is a potentially life-threatening condition that occurs when body temperature drops below 35° C (95° F). Hypothermia can be caused by exposure to cold temperatures, inadequate clothing, poor nutrition, chronic illness, or medication use. Therefore, it is important for the nurse to intervene and help the client maintain a safe and comfortable home environment.
Correct Answer is C
Explanation
This is because the most common cause of infusion pump alarms is occlusion or obstruction of the IV line, which can be due to kinking, bending, or compression of the tubing or catheter by the client's arm or body position. By repositioning the client's arm, the nurse can relieve the occlusion and restore the flow of the IV fluid.
This action should be done before checking for other possible causes of alarm, such as redness at the IV site (which could indicate infection or inflammation), loose tubing connections (which could cause leakage or air embolism), or clogged IV catheter (which could require flushing with saline or heparin solution).
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