A nurse is caring for a client who is receiving positive end-expiratory pressure (PEEP) via mechanical ventilation. The nurse should monitor the client for which of the following adverse effects of PEEP?
Hypoxemia
Tension pneumothorax.
Malignant hypertension
Atelectasis
The Correct Answer is B
A. Hypoxemia is a condition of low oxygen levels in the blood. PEEP can actually improve oxygenation by preventing alveolar collapse and increasing functional residual capacity.
B. Tension pneumothorax is a life-threatening condition of air accumulation in the pleural space that causes increased intrathoracic pressure and compresses the lungs, heart, and great vessels. PEEP can increase the risk of tension pneumothorax by creating excessive positive pressure in the airways and alveoli.
C. Malignant hypertension is a severe form of high blood pressure that can cause organ damage and stroke. PEEP can cause a transient increase in blood pressure due to increased intrathoracic pressure, but it does not cause malignant hypertension.
D. Atelectasis is a condition of partial or complete lung collapse due to alveolar collapse or obstruction. PEEP can prevent or treat atelectasis by maintaining positive pressure in the airways and alveoli.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A: Incorrect. Aspirin can trigger asthma attacks in some children and should be avoided.
B: Incorrect. The peak expiratory flow meter should be used daily, not just when the child has symptoms, and the highest reading should be recorded, not the average.
C: Incorrect. Carpet can harbor dust mites, mold, and other allergens that can worsen asthma. It is better to have hardwood or tile floors and washable rugs.
D: Correct. Influenza immunization can prevent serious complications from respiratory infections in children with asthma.
Correct Answer is D
Explanation
Choice A rationale:
Hanging the transfusion with dextrose 5% in 0.9% sodium chloride is incorrect. Packed red blood cells (PRBCs) are transfused with normal saline (0.9% sodium chloride) and not with dextrose-containing solutions. Using dextrose can cause the red blood cells to hemolyze.
Choice B rationale:
Infusing the transfusion over 5 hours is incorrect. PRBC transfusions are typically administered over 2-4 hours, not 5 hours. Infusing the blood too slowly may cause the patient discomfort and may also increase the risk of bacterial growth in the blood product.
Choice C rationale:
Using a 20-gauge IV catheter to transfuse the blood is incorrect. While a 20-gauge IV catheter is suitable for most blood transfusions, it may not be appropriate for older adults or patients with fragile veins. A smaller gauge, such as 22 or 24, might be more suitable to prevent phlebitis and ensure a steady flow without damaging the blood cells.
Choice D rationale:
Monitoring vital signs every hour throughout the transfusion is the correct action. During a blood transfusion, it's crucial to monitor the patient's vital signs frequently to detect any adverse reactions promptly. Vital signs, including blood pressure, heart rate, respiratory rate, and temperature, should be assessed before the transfusion, 15 minutes after starting the transfusion, and then hourly thereafter. This vigilant monitoring helps in identifying potential transfusion reactions, such as fever, chills, or hypotension, allowing for immediate intervention if needed.
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