Arterial Blood Gas Errors Sources Analytical Measuring Authored by William A. French. Medically reviewed by Dr. Barbara Erickson, PhD, RN, CCRN. LessonsOverviewCore ValuesIndicationsArterial PunctureRadial ArteryBrachial ArteryFemoral ArteryAllen TestProcedure 1Procedure 2Blood Gas AnalysisBlood Gas AnalyzerElectrodes✓ErrorsQuality ControlConclusionSign-in to enable progress reports and certificates.