Q: All of the following direct oral anticoagulants (DOACs) have partial excretion in hepatic insufficiency, and may cause bio-accumulation in severe liver insufficiency except? 

A) Dabigatran 
B) Rivaroxaban 
C) Apixaban 
D) Edoxaban
E) Warfarin


Answer: A

All of the DOACs have renal and hepatic excretion except Dabigatran which has no hepatic metabolism

Warfarin is not a DOAC.