A nurse is reviewing the laboratory values of a client who has respiratory acidosis. Which of the following findings should the nurse expect?

Potassium 3.3 mEq/L.

HCO3- 30 mEq/L.

PacO2 50 mm Hg.

pH 7.45.

Answer and Explanation

The Correct Answer is C

PacO2 50 mm Hg. Choice A rationale:

Potassium levels are not directly related to respiratory acidosis. Potassium levels may be affected in certain conditions, but they are not specific indicators of respiratory acidosis.

Choice B rationale:

HCO3- (bicarbonate) levels may be elevated in metabolic alkalosis, not respiratory acidosis. In respiratory acidosis, the primary abnormality is an increased PacO2, not HCO3-.

Choice C rationale:

The partial pressure of carbon dioxide (PacO2) is a key parameter in diagnosing respiratory acidosis. In this case, a PacO2 of 50 mm Hg suggests hypoventilation and an excess of carbon dioxide in the blood, contributing to acidosis.

Choice D rationale:

The pH level given (pH 7.45) is within the normal range, which contradicts the diagnosis of respiratory acidosis. In respiratory acidosis, the pH would be expected to be below the normal range of 7.35-7.45 due to increased carbon dioxide levels.

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Correct Answer is A

Explanation

The correct answer is choice A. Client has an NG tube to gastric suction.

Choice A rationale:

Having an NG tube to gastric suction can lead to hypokalemia because the suctioning process removes potassium from the stomach contents, leading to a decrease in serum potassium levels.

Choice B rationale:

While a history of alcohol abuse disorder can lead to various electrolyte imbalances, it is not the most direct cause of hypokalemia compared to gastric suction.

Choice C rationale:

Drinking 3.5 to 4 liters of water each day can lead to dilutional hyponatremia but is less likely to cause hypokalemia directly.

Choice D rationale:

Spironolactone is a potassium-sparing diuretic, which means it helps retain potassium in the body. Therefore, it is not a causative factor for hypokalemia.

A. Encourage the patient to breathe in and out slowly into a paper bag. B. Immediately administer oxygen via a mask and monitor oxygen saturation. C. Anticipate the administration of intravenous sodium bicarbonate. D. Prepare to start an intravenous fluid bolus using isotonic fluids.

Correct Answer is A

Explanation

The correct answer is choice A: Encourage the patient to breathe in and out slowly into a paper bag.

Choice A rationale:The patient’s arterial blood gas (ABG) results indicate respiratory alkalosis, as evidenced by the elevated pH (7.48) and decreased PaCO2 (25 mm Hg). Respiratory alkalosis often results from hyperventilation, which can occur due to anxiety. Breathing into a paper bag helps to increase CO2 levels in the blood, thereby correcting the alkalosis.

Choice B rationale:Administering oxygen is not appropriate in this scenario because the patient’s PaO2 is already elevated (110 mm Hg), indicating that oxygenation is not the issue. Providing additional oxygen would not address the underlying problem of hyperventilation and respiratory alkalosis.

Choice C rationale:Intravenous sodium bicarbonate is used to treat metabolic acidosis, not respiratory alkalosis. In this case, the patient’s HCO3 is within the normal range (24 mEq/L), indicating that there is no metabolic acidosis present.

Choice D rationale:Starting an intravenous fluid bolus with isotonic fluids is not indicated for correcting respiratory alkalosis. This intervention is more appropriate for patients experiencing hypovolemia or dehydration, which is not suggested by the patient’s ABG results.

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A nurse is reviewing the laboratory values of a client who has respiratory acidosis. Which of the following findings should the nurse expect?

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Naxlex Comprehensive Predictor Exams

A nurse is reviewing the medical record of a client who has a potassium level of 3.0 mEq/L. Which of the following findings should the nurse recognize as a potential causative factor?

Correct Answer is A

Explanation

The nurse is caring for a patient who is anxious and dizzy following a traumatic experience. The arterial blood gas findings include: pH 7.48, PaO2 110, PaCO2 25, and HCO3 24. Which intervention should the nurse expect to be prescribed to correct this problem?

Correct Answer is A

Explanation

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