Warfarin can be changed to DOAC as soon as: PC3 Warfarin can be changed to DOAC as soon as: A) INR <4 B) INR <1 C) INR <3 D) INR <2 Answer: INR <2 (exception: riva <3 and edoxa <2.5) Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+