Medicine A patient has the following blood gases: PaCO2- 25, pH- 7.50, HCO3– 19. Which of the following could not be the cause of this condition? A Anxiety attack B paO2/Fi O2 ratio <100 C Hysteria D Aspirin toxicity 💡 Explanation A patient has the following blood gases: PaCO2- 25, pH- 7.50, HCO3-- 19. Which of the following could not be the cause of this condition? ✓ Correct Answer: B. paO2/Fi O2 ratio <100