What is the anti-Xa: anti-IIa inhibition ratio for LMWH PC3 What is the anti-Xa: anti-IIa inhibition ratio for LMWH A) 2:1 B) 3:1 C) 4:1 D) 1:1 Answer: 4:1 Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+