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 D
Explanation
Choice A rationale:
An altered level of consciousness is not a typical finding in Alzheimer's disease. This condition is characterized by cognitive decline and memory impairment, but consciousness itself is not directly affected.
Choice B rationale:
Rapid mood swings can occur in individuals with Alzheimer's disease due to the changes in brain structure and function. These mood swings are a common behavioral symptom. However, the more distinctive hallmark of Alzheimer's disease is the cognitive decline rather than mood swings.
Choice C rationale:
Excessive motor activity is not a prominent feature of Alzheimer's disease. Instead, individuals with Alzheimer's disease often experience a decline in motor skills and coordination as the disease progresses.
Choice D rationale:
Failure to recognize familiar objects is a common symptom of Alzheimer's disease. This is referred to as agnosia, where individuals may struggle to recognize familiar people, objects, or places. It results from the progressive damage to brain regions responsible for memory and sensory processing.
Correct Answer is B
Explanation
Choice A rationale:
Granulating tissue in a foot ulcer is a positive sign of wound healing, but it may not be directly related to the effectiveness of pregabalin in treating diabetic peripheral neuropathy. The primary goal of pregabalin in this context is to reduce pain and neuropathic symptoms.
Choice B rationale:
A reduced level of pain is the most relevant indicator of the effectiveness of pregabalin in treating diabetic peripheral neuropathy. Pregabalin is an antiepileptic medication used to manage neuropathic pain. A decrease in pain indicates that the medication is effectively managing the client's symptoms.
Choice C rationale:
Improved visual acuity is not directly related to the effectiveness of pregabalin in treating diabetic peripheral neuropathy. Pregabalin primarily targets neuropathic pain and sensory symptoms, not visual function.
Choice D rationale:
A full volume of pedal pulses is a positive sign of adequate circulation in the lower extremities, but it may not be directly related to the effectiveness of pregabalin in treating neuropathy symptoms. The primary goal of pregabalin in this context is pain management.
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