A 31-year-old female who is a victim of a residential fire i…

A 31-year-old female who is a victim of a residential fire is brought to the ED and is receiving oxygen by nasal cannula at 8 L/min.  SpO2 is 100%.  The following data are observed:   pH          7.31 PCO2        32 mm Hg PO2      205 mm Hg HCO3-        16 mEq/L BE         -9 mEq/L SO2 (meas)        99% O2Hb        78% COHb        21% Hb        14.5 g/dL   A respiratory therapist should recommend