A nurse is caring for a client whose arterial blood gas results show a pH of 7.3 and a Paco2 of 50 mm Hg. The nurse should identify that the client is experiencing which of the following acid-base imbalances?
Respiratory acidosis.
Metabolic acidosis.
Metabolic alkalosis.
Respiratory alkalosis.
The Correct Answer is A
Choice A rationale:
The arterial blood gas results show a low pH (acidosis) and an elevated Paco2 (partial pressure of carbon dioxide), which indicates respiratory acidosis. This condition occurs when there is inadequate removal of carbon dioxide through ventilation, leading to an accumulation of carbonic acid in the blood and a decrease in pH.
Choice B rationale:
Metabolic acidosis would present with a low pH and a low bicarbonate (HCO3-) level, not an elevated Paco2.
Choice C rationale:
Metabolic alkalosis would present with a high pH and an elevated bicarbonate (HCO3-) level, not an elevated Paco2.
Choice D rationale:
Respiratory alkalosis would present with a high pH and a decreased Paco2, not an elevated Paco2 as seen in this case.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
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.
Correct Answer is C
Explanation
Widened QRS Complexes.
Choice A rationale:
Hyperactive deep tendon reflexes are not typical findings in respiratory acidosis. They are more commonly associated with conditions like hypocalcemia or hypercalcemia.
Choice B rationale:
Warm, flushed skin is not directly related to respiratory acidosis. It is not a typical manifestation of this acid-base imbalance.
Choice C rationale:
Widened QRS complexes on an ECG are characteristic findings in respiratory acidosis. Acidosis can lead to changes in the electrical conduction of the heart, resulting in QRS complex widening.
Choice D rationale:
Bounding peripheral pulses are not directly associated with respiratory acidosis. They may be seen in conditions like hyperthyroidism or anemia but are not specific to respiratory acidosis. Remember, always interpret lab results and clinical findings in the context of the patient's overall condition, medical history, and other relevant factors to provide the best care possible.
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