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:
Objective data. Rationale: Objective data are observable and measurable facts obtained through physical examination or diagnostic tests. The statement incorrectly labels the data as objective when it is, in fact, based on the client's feelings and perceptions, making it subjective.
Choice B rationale:
Subjective data. Rationale: Subjective data are information provided by the client, including their feelings, perceptions, and experiences. The statement correctly labels the data as subjective, as it reflects the client's report of thirst and hunger.
Choice C rationale:
Primary data. Rationale: Primary data are original data collected directly from the source, such as a client's medical history or interview. However, this classification does not address the nature of the data as being subjective or objective, so the statement does not provide a complete answer.
Choice D rationale:
Secondary data. Rationale: Secondary data are data obtained from sources other than the client, such as medical records or research studies. Similar to choice C, this classification does not address the nature of the data as being subjective or objective.
Correct Answer is C
Explanation
Choice A rationale:
Referring the client to a social worker for support therapy may be premature at this stage. The client's initial reaction may be due to fear or anxiety about the diagnosis and self-administration of insulin. Pushing the client into therapy without assessing their readiness may not be appropriate.
Choice B rationale:
Encouraging the client to implement relaxation techniques assumes that the client is open to learning and just needs help with anxiety management. However, the client's refusal to have the nurse in the room suggests that they are not currently receptive to teaching. It's important to address the client's emotional state first.
Choice C rationale:
Leaving the client's room and returning later in the day is the most appropriate initial action. The client's loud refusal indicates a need for privacy and emotional space. By respecting the client's wishes and revisiting the teaching later, the nurse can establish trust and build a better rapport.
Choice D rationale:
Explaining that insulin is a life-saving drug is informative but may not be effective in this situation, as the client has already requested the nurse to leave the room. Providing information about the importance of insulin should come after establishing a therapeutic nurse-client relationship.
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