Fig. 5. The predicted effect of fraction of inspired oxygen (Fio2) on the carboxyhemoglobin (COHb) saturation in a patients receiving an anesthetic with 1.5% end-tidal isoflurane at 1,000 ml/min fresh gas flow. Other parameters are a 48-h barium hydroxide lime desiccation time, tidal volume of 15 ml/kg, respiratory rate of 10 breaths/min, hematocrit of 42%, and size of 25 kg.
