CBC
aPTT/PT: Factor Xa inhibitors affect PT, however unlike with warfarin, degree of PT elevation not directly correlated to level of anticoagulation
non contrast head CT showing ICH
Antifactor Xa assays- measure drug levels but not degree of anticoagulation, need to be calibrated for<unk>  not LMWH, and often not available in a timely fashion
Evaluation of clinical manifestation of bleeding (e.g. head CT, endoscopy)
Rivaroxaban reversal
Bleeding secondary to other coagulopathy
Dabigatran reversal
Spontaneous bleeding
Warfarin reversal
Unfractionated heparin reversal
Anti-platelet agent reversal
Enoxaparin