A client is scheduled for a colonoscopy. Which pre-procedure assessment finding is MOST important to report to the provider?

PRE-PROCEDURE ASSESSMENT for colonoscopy must identify bleeding risk factors because colonoscopy can involve biopsy, polyp removal, and other interventions that create mucosal wounds.

Anticoagulants: Warfarin, direct oral anticoagulants (apixaban, rivaroxaban, dabigatran), and antiplatelet agents (clopidogrel, aspirin) all increase bleeding risk during endoscopic procedures.

The provider decision: For elective colonoscopy with polypectomy anticipated: warfarin is typically held 5 days before with or without heparin bridging (depending on thromboembolic risk); direct oral anticoagulants held 24-48 hours before; antiplatelet decisions are case-specific; for diagnostic-only colonoscopy with low bleeding risk, some anticoagulants may be continued at reduced risk.

INR should be checked: For patients on warfarin, INR should be therapeutic or sub-therapeutic before the procedure; an INR above 2.0-2.5 is typically a contraindication to proceeding.

Nursing role: Accurate medication reconciliation — specifically ask about blood thinners, herbals (fish oil, vitamin E, ginkgo also affect bleeding); report anticoagulant use to the provider/gastroenterologist; ensure the patient understands any medication-holding instructions.

Also important: NPO status, bowel prep completion, allergies to sedating agents, and implanted devices (pacemakers — electrocautery precautions).