Fig. 5From: Comparison of different laboratory tests in the evaluation of hemorrhagic risk of patients using rivaroxaban in the critical care setting: diagnostic accuracy studyProthrombin time (PT; seconds) distribution according to rivaroxaban plasmatic concentration. Normal range is represented by the gray band with a lower limit of 12.6 s (90% confidence interval, CI: 12.37–12.85) and upper limit of 15.2 s (90% CI: 14.96–15.44)Back to article page