Based on the following ABG results, what is the most likely acid-base diagnosis? pH = 7.43, PCO₂ = 20 mm Hg, HCO₃^- = 12.6 mEq/L

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The pH is within the normal range (7.35-7.45), which rules out any acute acid-base disorders. The low PCO2 (20 mm Hg) suggests respiratory alkalosis. However, the normal bicarbonate (26 mEq/L) indicates full compensation, and the pH is on the alkalotic side of normal, suggesting fully compensated respiratory alkalosis. Option C is the only choice that reflects fully compensated respiratory alkalosis.

Based on the Following ABG Results, What Is the Most