ATI 24 Spns 126 Med Surg Final Exam Related

Review ATI 24 Spns 126 Med Surg Final Exam related questions and content

A nurse is reviewing the laboratory results of a client who is postoperative and has a respiratory rate of 7/min. The arterial blood gas (ABG) values include: pH 7.22, PaCO₂ 68 mm Hg, Base excess -2, PaO₂ 78 mm Hg, Oxygen saturation 80%, Bicarbonate 28 mEq/L. Which of the following interpretations of the ABG values should the nurse make?

  • A. Respiratory alkalosis.
  • B. Respiratory acidosis.
  • C. Metabolic acidosis.
  • D. Metabolic alkalosis.
Correct Answer: B

Rationale: Low pH (7.22) and high PaCO₂ (68 mm Hg) indicate respiratory acidosis, caused by CO₂ accumulation due to inadequate ventilation.