How Long Should You Be Off Blood Thinners Before A Colonoscopy?

How Long Should You Be Off Blood Thinners Before A Colonoscopy? It should be discontinued 36 to 48 h prior to any high-risk endoscopic procedure. Can you have a colonoscopy on blood thinners? Answer • Most screening colonoscopies now are done with patients still on their anticoagulants, although for patients on warfarin (Coumadin), it is