A nurse prepares to interpret the ABG values of a client diagnosed with an acid-base imbalance. Which values are most important for the nurse to consider? (Select 4 options that apply.)

Rationale: A. pH indicates the overall acid-base status (acidosis or alkalosis) and is critical in determining the presence of an imbalance. B. PaCO₂ reflects the respiratory component of acid-base balance and helps assess respiratory acidosis or alkalosis. C. HCO₃ (bicarbonate) reflects the metabolic component of acid-base balance and is essential for evaluating metabolic acidosis or alkalosis. D. PaO₂ indicates the oxygenation status of the client, which is important in assessing respiratory function, though not a direct marker of acid-base imbalance. E. Blood glucose is not part of arterial blood gas analysis and is unrelated to acid-base balance interpretation.