total concentration of oxygen in the blood, both that bound to Hb and that dissolved in the plasma, concentration the oxygen from a gas supply (typically ambient air) by selectively removing nitrogen to supply an oxygen-enriched product gas stream, hapniku osakaal mingis aines, hapniku sisaldus veres, nii Hb-ga seotud kui ka plasmas lahustunud hapnik, gaasis oleva hapniku kogus, mis rikastab gaasivoogu