A nurse is caring for a patient experiencing an acute exacerbation of chronic obstructive pulmonary disease (COPD). Which arterial blood gas (ABG) finding would be most indicative of this condition?

The correct answer to the question "A nurse is caring for a patient experiencing an acute exacerbation of chronic obstructive pulmonary disease (COPD). Which arterial blood gas (ABG) finding would be most indicative of this condition?" is Option B: pH 7.30, PaCO2 55 mmHg, HCO3 30 mEq/L.

The other options — A) pH 7.48, PaCO2 30 mmHg, HCO3 24 mEq/L, C) pH 7.20, PaCO2 35 mmHg, HCO3 18 mEq/L, D) pH 7.45, PaCO2 40 mmHg, HCO3 28 mEq/L — are incorrect for this NCLEX-RN Exam Prep question. As explained above: An acute exacerbation of COPD typically presents as respiratory acidosis (low pH, high PaCO2) with some metabolic compensation (high HCO3) if the condition is chronic. Option B shows partially compen…