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
The correct answer is D. Notify your healthcare provider if you start having abdominal pain.
Choice A rationale:
Exenatide does not act in the same way as insulin. Insulin directly lowers blood glucose levels by facilitating the uptake of glucose into cells, while exenatide is an incretin mimetic that enhances glucose-dependent insulin secretion and slows gastric emptying.
Choice B rationale:
Exenatide should be injected within 30 minutes before or after a meal, but this is not the most critical information for discharge instructions.
Choice C rationale:
There are precautions about taking exenatide with other medications, especially those that affect kidney function or interact with exenatide.
Choice D rationale:
Notifying the healthcare provider if abdominal pain starts is crucial because exenatide can cause side effects such as pancreatitis, which presents with severe abdominal pain. Early detection and intervention are essential for patient safety.
Correct Answer is C
Explanation
The correct answer is choicec. Administer prescribed stool softener.
Choice A rationale:
Administering prescribed PRN sleep medications can help the client rest, but it is not the highest priority. Managing pain and preventing complications from the laceration are more critical.
Choice B rationale:
Encouraging the use of prescribed analgesic perineal sprays can help manage pain and promote healing, but it is not as crucial as preventing constipation, which can cause significant discomfort and complications.
Choice C rationale:
Administering prescribed stool softeners is the highest priority because a fourth-degree laceration involves the anal sphincter and rectal mucosa.Preventing constipation is essential to avoid straining during bowel movements, which can cause pain and disrupt the healing process.
Choice D rationale:
Encouraging breastfeeding to promote uterine involution is important for postpartum recovery, but it is not directly related to the care of a fourth-degree laceration. Managing pain and preventing complications from the laceration take precedence.
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