902: UTILITY OF APIXABAN OR RIVAROXABAN ANTI-XA LEVELS IN TRANSITIONING PATIENTS TO HEPARIN INFUSIONS.

B Introduction/Hypothesis: b Activated partial thromboplastin times and heparin-calibrated anti-Xa levels are used to monitor unfractionated heparin infusions. B Results: b Fifty-nine patients were included in each study group with similar baseline characteristics, except for the higher utilization of an increased bleeding risk heparin infusion protocol in the evaluation group (23.7% vs 6.8%; p=0.01). [Extracted from the article]