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 A
Explanation
Choice A rationale:
Protamine sulfate is an antidote for heparin overdose and should be administered slowly intravenously to avoid rapid hemodynamic changes and potential adverse reactions.Administering it within 30 minutes ensures timely reversal of heparin’s anticoagulant effects.
Choice B rationale:
Administering protamine sulfate rapidly intramuscularly is incorrect because intramuscular administration is not recommended due to the risk of hematoma formation and slower absorption compared to intravenous administration.
Choice C rationale:
While slow intravenous administration is correct, the timing of 60 minutes is less effective compared to 30 minutes for reversing heparin’s effects promptly.
Choice D rationale:
Rapid intramuscular administration is incorrect for the same reasons as Choice B.Rapid administration can cause adverse reactions, and intramuscular administration is not the preferred route.
Correct Answer is A
Explanation
Choice A rationale:
Ask the wife to stop and assess the client's swallowing reflex. Rationale: While assessing the client's swallowing reflex is important, the immediate priority is to provide hydration and comfort to the client, especially if the client is tearful and attempting to drink water. The nurse should assist the wife in providing small sips of water while being cautious and observing the client's ability to swallow safely.
Choice B rationale:
Give the wife a straw to help facilitate the client's drinking. Rationale: Giving the wife a straw may be helpful, but it does not address the client's immediate need for hydration and assistance with drinking. The nurse should actively assist in providing water to the client while assessing the client's ability to swallow safely.
Choice C rationale:
Assist the wife and carefully give the client small sips of water. Rationale: This is the correct answer. The nurse's immediate priority should be to assist the client with hydration. Providing small sips of water while being cautious and observing the client's ability to swallow safely is an appropriate action. This can help address the client's immediate needs for comfort and hydration.
Choice D rationale:
Obtain thickening powder before providing any more fluids. Rationale: While thickening powder may be necessary for clients with swallowing difficulties, it may cause unnecessary delay in providing hydration to the client in distress. The nurse should first provide water and assess the client's swallowing abilities. If thickened liquids are indicated, they can be administered later as per the healthcare provider's orders.
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