Fig. 7From: Comparison of different laboratory tests in the evaluation of hemorrhagic risk of patients using rivaroxaban in the critical care setting: diagnostic accuracy studyDilute Russell viper venom time screen (dRVVTS) (seconds) distribution according to rivaroxaban plasmatic concentration. Normal range is represented by the gray band with a lower limit of 36.5 s (90% confidence interval, CI: 36.2–36.9) and upper limit of 40.2 s (90% CI: 39.9–40.6)Back to article page