Arterial Blood Gas pH Electrode PCO2 Electrode PO2 (Clark) LessonsOverview.Core Values.Indications.Arterial Puncture.Radial Artery.Brachial Artery.Femoral Artery.Allen Test.Procedure 1.Procedure 2.Blood Gas Analysis.Blood Gas Analyzer.✓Electrodes.Errors.Quality Control.Conclusion.Sign in to enable progress reports and certificates.