Medically Compromised Patients
Dental Treatment for Patients on Blood Thinners
Blood thinners such as aspirin, clopidogrel, warfarin, Coumadin and heparin are prescribed to prevent clots in conditions including deep vein thrombosis, pulmonary embolism, unstable angina, heart attack, atrial fibrillation, dialysis, prosthetic heart valves and stent placement.

- Bleeding risk assessed before treatment
- Coordination with your physician
- PT / INR and platelet testing where indicated
- Local measures to control bleeding
Tests we review before treatment
Depending on your medication we may review platelet count (normal 150,000–450,000/mm³), Ivy bleeding time (2–10 minutes), prothrombin time (11–15 seconds), INR (normal 1.0; therapeutic range on anticoagulants is usually 2.0–3.5) and activated partial thromboplastin time.
Never stop your medication on your own
Do not alter or discontinue an anticoagulant before a dental appointment unless your physician instructs you to. Most routine dentistry can be performed safely while you continue your medication, using careful surgical technique and local haemostatic measures.