Standard coagulation assays alone are not sufficient to exclude surgically relevant rivaroxaban plasma concentrations.
Alexander KasererAndreas SchedlerBurkhardt SeifertDonat R SpahnJan-Dirk StudtPhilipp SteinPublished in: Perioperative medicine (London, England) (2019)
Although a moderate correlation of RXA plasma concentration with PT/Quick, INR, and aPTT was observed, standard coagulation assays are not sufficient to exclude surgically relevant RXA plasma concentrations.