Patient on acitrom, aftr dvt & pe, after 5 days of discharge a ptt is done ptt patient=20.2s, ctrol=15s,pt ratio=1.34,inr=1.3, kindly expln t result.

Keep taking med: The medicine that you are taking is a Vitamin K antagonist. It slowly decreases Vitami K dependent proteins that help blood to clot. It can take anywhere from 3-7 days for these proteins to be depleted. Also you need to limit or avoid foods high in Vitamin K (please Google these). Continue the medication and see your provider as scheduled.