CarboxyhemoglobinMethemoglobinCarbon Monoxide PoisoningMethemoglobinemiaCarbon MonoxideSulfhemoglobinOxyhemoglobinsHemoglobinsOximetryMethylene ChlorideSpectrophotometrySmoke Inhalation InjuryDithioniteCytochrome-B(5) ReductaseBlood Gas Monitoring, TranscutaneousBarium CompoundsPotassium CompoundsChromatography, GasSodium NitritePhotolysisHemoglobin MPhytic AcidOxygenHemoglobin ACyanidesSmokingKinetics