A client is on a ventilator. Alarms are sounding, indicating an increase in peak airway pressure. The nurse assesses first for what?
Malfunction of the alarm button.
A cut or slice in the tubing from the ventilator.
Higher than normal endotracheal cuff pressure.
A kink in the ventilator tubing.
The Correct Answer is D
Choice A Reason:
Malfunction of the alarm button is unlikely to be the cause of increased peak airway pressure. The alarm is designed to alert the nurse to a problem with the ventilator or the patient’s airway, not to malfunction itself. Therefore, this is not the first thing the nurse should assess.
Choice B Reason:
A cut or slice in the tubing from the ventilator could cause a loss of pressure or air leak, but it would not typically result in increased peak airway pressure. Instead, it would likely cause a decrease in pressure and potentially trigger a different alarm.
Choice C Reason:
Higher than normal endotracheal cuff pressure can contribute to increased peak airway pressure. However, it is not the most immediate concern compared to a kink in the tubing, which can completely obstruct airflow and rapidly compromise the patient’s ventilation.
Choice D Reason:
A kink in the ventilator tubing is a common and immediate cause of increased peak airway pressure. It obstructs the flow of air, leading to a buildup of pressure in the system. This is the first thing the nurse should assess and correct to ensure the patient is receiving adequate ventilation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A: Severe Hypertension
Severe hypertension can be a sign of increased intracranial pressure (ICP), but it is not typically the earliest sign. Hypertension often occurs as a compensatory mechanism to maintain cerebral perfusion pressure. While it is a significant finding, it usually follows other more immediate signs of increased ICP.
Choice B: Dilated and Nonreactive Pupils
Dilated and nonreactive pupils are a late sign of increased ICP and indicate severe brainstem compression. This finding suggests that the pressure has reached a critical level, leading to brain herniation. It is a very serious sign but not the earliest indicator of increasing ICP.
Choice C: Decreased Level of Consciousness
A decreased level of consciousness is often the earliest and most sensitive indicator of increasing ICP. Changes in consciousness can range from confusion and lethargy to complete unresponsiveness. This symptom reflects the brain’s response to increased pressure and reduced cerebral perfusion, making it a critical early sign that requires immediate attention.
Choice D: Projectile Vomiting
Projectile vomiting can occur with increased ICP due to pressure on the vomiting centers in the brainstem. However, it is not typically the earliest sign. Vomiting often accompanies other symptoms such as headache and changes in consciousness.
Correct Answer is B
Explanation
Choice A Reason:
Documenting that the nasogastric tube is in the correct place is not appropriate in this scenario. A gastric pH of 7.35 is too high for stomach contents, which typically have a pH between 1.5 and 3.5. This high pH suggests that the tube may be misplaced, possibly in the respiratory tract or another non-gastric location. Therefore, documenting the tube as correctly placed could lead to serious complications if the tube is indeed misplaced.
Choice B Reason:
Notifying the health care provider is the most appropriate action. A pH of 7.35 is indicative of a potential misplacement of the nasogastric tube. The health care provider needs to be informed immediately to take corrective actions, such as ordering an X-ray to confirm the tube’s placement or re-evaluating the tube’s position. This step is crucial to ensure patient safety and prevent complications such as aspiration pneumonia or other adverse effects.
Choice C Reason:
Checking for placement by auscultating for air injected into the tube is an outdated and unreliable method. This technique can sometimes give false assurance of correct placement, as the sound of air can be heard even if the tube is in the respiratory tract. Current best practices recommend using pH testing and radiographic confirmation for accurate placement verification.
Choice D Reason:
Retesting the pH using another strip might seem like a reasonable step, but it is not the best immediate action. If the initial pH test shows a value of 7.35, it is unlikely that retesting will yield a significantly different result. The priority should be to notify the health care provider to address the potential misplacement promptly.
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