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.
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Related Questions
Correct Answer is {"dropdown-group-1":"A","dropdown-group-2":"D"}
Explanation
Choice A rationale:
A pH level of 7.35 to 7.45 and HCO3- level of 22 to 26 mEq/L indicate a resolution of ketoacidosis. The normal pH range for the body is 7.35 to 7.45, and a return to this range indicates that the body’s acid-base balance has been restored. The bicarbonate (HCO3-) level is a measure of the metabolic component of the body’s acid-base balance, and the normal range is 22 to 26 mEq/L. A return to this range indicates that the metabolic acidosis caused by the ketoacidosis has been resolved.
Choice B rationale:
A pH level of 7.25 to 7.35 and HCO3- level of 18 to 22 mEq/L would indicate that the client is still in a state of mild acidosis, as the pH is below the normal range and the bicarbonate level is also slightly low, indicating a metabolic acidosis.
Choice C rationale:
A pH level of 7.15 to 7.25 and HCO3- level of 14 to 18 mEq/L would indicate a moderate acidosis. Both the pH and bicarbonate levels are significantly below their normal ranges, indicating a significant disruption in the body’s acid-base balance.
Choice D rationale:
A pH level of 7.05 to 7.15 and HCO3- level of 10 to 14 mEq/L would indicate severe acidosis, which would be life-threatening if not corrected. Both the pH and bicarbonate levels are far below their normal ranges, indicating a severe disruption in the body’s acid-base balance. In conclusion, choice A is correct because it represents values within the normal ranges for both pH and bicarbonate, indicating a resolution of ketoacidosis.
Correct Answer is D
Explanation
An 18-year-old client with a mild mental disability is a client who has a lower than average intellectual functioning and some limitations in adaptive skills, such as communication, socialization, and self-care. A mild mental disability may affect the client's ability to understand, cope, or cooperate with medical interventions, such as ambulation after surgery.
Ambulation is the act of walking or moving around. It is an important part of postoperative care, as it helps to prevent complications such as deep vein thrombosis, pulmonary embolism, pneumonia, atelectasis, constipation, and pressure ulcers. Ambulation also promotes circulation, wound healing, and muscle strength.
When the practical nurse (PN) atempts to assist the client to ambulate on the first postoperative day after an appendectomy, the client becomes angry and says, "PN, 'Get out of here! I'll get up when I'm ready!" This may indicate that the client is experiencing pain, fear, anxiety, or frustration due to the surgery and the recovery process .
The best response for the PN to make is to acknowledge the client's feelings, provide reassurance and support, and set a clear and realistic goal for ambulation. This will help to establish rapport, reduce resistance, and motivate the client to participate in the care plan.
Therefore, option D is the correct answer, as it shows empathy and respect for the client's feelings, while also informing the client of the expectation and time frame for ambulation. Option D also allows the client some time to prepare mentally and physically for the activity.
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