Fig. 1From: Standard coagulation assays alone are not sufficient to exclude surgically relevant rivaroxaban plasma concentrationsFlowchart showing the number of included and excluded patients for each standard coagulation assay. Not all patients had a concomitant Quick/INR and aPTT measurement, explaining the different counts in the Quick/INR and aPTT groups. RXA = rivaroxaban, INR=international normalized ratio, aPTT = activated partial thromboplastin time, Quick = prothrombin time expressed as % of the normal plasma poolBack to article page