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:
Leaving the client alone to give them space is not an appropriate intervention for a client with depression and a history of suicide attempts. Isolation can increase feelings of hopelessness and despair, potentially leading to self-harm or suicidal thoughts.
Choice B rationale:
Removing any potential means of self-harm from the client's environment is the most essential intervention in this scenario. It is crucial to ensure the client's safety by eliminating access to items or substances that could be used for self-harm, such as medications, sharp objects, or other dangerous items. This intervention helps reduce the immediate risk of harm.
Choice C rationale:
Encouraging the client to confront their feelings of hopelessness is important in the long term, as it can be part of therapeutic interventions. However, it should not be the immediate priority when the client is at risk of self-harm. Ensuring their safety is paramount.
Choice D rationale:
Telling the client that they should be grateful for what they have is not an appropriate intervention. It can be perceived as dismissive of their feelings and may worsen their sense of hopelessness and isolation.
Correct Answer is B
Explanation
Choice A rationale:
Drinking electrolyte fluid replacements may be necessary if the client is dehydrated due to diabetic ketoacidosis (DKA). However, addressing the increased thirst, which is a sign of DKA, should involve insulin administration to correct the underlying problem of high blood sugar.
Choice B rationale:
Giving a dose of regular insulin as prescribed is the most appropriate action to address increased thirst in a client with type 1 diabetes and early signs of DKA. Elevated blood sugar levels are the cause of the increased thirst, and insulin helps lower blood sugar levels.
Choice C rationale:
Resuming normal physical activity may not be advisable when a client is experiencing early signs of DKA. Strenuous physical activity can exacerbate hyperglycemia, and the primary focus should be on insulin administration and rehydration.
Choice D rationale:
Measuring urine output over the next 24 hours is important for monitoring hydration status in a client with DKA. However, the immediate priority is to address the increased thirst and hyperglycemia with insulin therapy.
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