Arterial Blood Gas Radial Artery Radial Artery 1 Radial Artery 2 Radial Artery 3 Radial Artery 4 Listen Visualize Observe Authored by William A. French. Medically reviewed by Dr. Barbara Erickson, PhD, RN, CCRN. LessonsOverviewCore ValuesIndicationsArterial Puncture✓Radial ArteryBrachial ArteryFemoral ArteryAllen TestProcedure 1Procedure 2Blood Gas AnalysisBlood Gas AnalyzerElectrodesErrorsQuality ControlConclusion Medically reviewed: William A. French