Physiology Aerial blood gas analysis in Carbon monoxide poisoning shows: A PO2 less, O2 saturation normal B PO2 normal, O2 saturation less with normal or slightly decreased PCO2 C PO2 less, O2 saturation normal D PO2 less, O2 saturation decreased 💡 Explanation Aerial blood gas analysis in Carbon monoxide poisoning shows: ✓ Correct Answer: B. PO2 normal, O2 saturation less with normal or slightly decreased PCO2