A client with COPD is admitted to the hospital with an exacerbation of the disease. ABG results are pH 7. 30, PaCO2 51, and HCO3- 25. How would the nurse interpret these?
A. Respiratory acidosis, uncompensated.
B. Respiratory alkalosis partially compensated.
C. Respiratory acidosis, compensated.
D. Metabolic acidosis, compensated.