A client receiving mechanical ventilation has a pH of 7.26, PaCO2 of 68 mm Hg, and a PaO2 of 92 mm Hg. Which intervention should the nurse implement?
Decrease expiratory flow time.
Decrease expiratory pressure.
Increase rate of ventilation.
Increase ventilator tidal volume.
The Correct Answer is C
The correct answer is choice C: Increase rate of ventilation.
Choice A rationale:
Decreasing expiratory flow time would not directly address the elevated PaCO2 levels. This intervention is more related to managing expiratory phase issues rather than correcting respiratory acidosis.
Choice B rationale:
Decreasing expiratory pressure might help with certain ventilation issues, but it does not specifically target the elevated PaCO2 and resulting acidosis.
Choice C rationale:
Increasing the rate of ventilation helps to blow off more CO2, thereby reducing PaCO2 levels and correcting the respiratory acidosis indicated by the pH of 7.26 and PaCO2 of 68 mm Hg.
Choice D rationale:
Increasing the ventilator tidal volume could also help reduce PaCO2 by increasing the amount of air exchanged with each breath. However, increasing the rate of ventilation is generally a more immediate and effective intervention for acute respiratory acidosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale: Impaired physical mobility is a significant concern in Parkinson's disease due to bradykinesia and tremors. However, it does not pose an immediate threat to life when compared to potential airway and respiratory complications.
Choice B rationale: Aspiration is the highest priority according to the ABC (Airway, Breathing, Circulation) framework. Parkinson's causes dysphagia and impaired laryngeal reflexes, making silent aspiration and subsequent pneumonia a life-threatening risk for the client.
Choice C rationale: Constipation is common due to decreased GI motility and side effects of dopaminergic medications. While it causes discomfort and potential impaction, it is a physiological need that ranks lower than respiratory safety.
Choice D rationale: Self-care deficits in hygiene and dressing affect the client's quality of life and independence. In the hierarchy of care, these functional limitations are addressed only after the client's physical safety and airway are secured.
Correct Answer is D
Explanation
Choice A rationale:
Washing the patient's left side first and then moving to the right side does not demonstrate an individualized approach or consideration for the patient's preferences and abilities. It is important to involve the patient in the decision-making process, especially when they have hemiparesis, to promote their autonomy and comfort.
Choice B rationale:
Washing the patient's right side first and then moving to the left side does not consider the patient's preference and may not align with their abilities or comfort. It is essential to prioritize the patient's preferences and needs.
Choice C rationale:
Washing both sides of the patient at the same time, starting from the head and moving down, may not be feasible or comfortable for the patient, especially if they have hemiparesis. This approach does not demonstrate an individualized care plan based on the patient's specific condition.
Choice D rationale:
Asking the patient which side they prefer to wash first and then following their preference is the most patient-centered and appropriate approach. This approach respects the patient's autonomy and ensures that their needs and comfort are prioritized during the bathing process. It allows for individualized care based on the patient's abilities and preferences.
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