INR Therapeutic Range Reference Sponsored Advertising placement INR Therapeutic Range Reference Clinical Decision Tool Provides commonly used warfarin INR target ranges for selected indications. Select Reference Atrial fibrillation / VTE Mechanical aortic valve Mechanical mitral valve Calculate INR Therapeutic Range Reference Clear Calculator ☆ Log in to save Save this calculator to your MDPDA account. + Add to Toolkit Log in to save incomplete calculator progress and return later. Log in to save progress Clinical Decision Support Only MediCalc calculators are intended to support qualified healthcare professionals and must not replace professional clinical judgement. Do not enter patient-identifiable information into Saved Progress. Read our Clinical Disclaimer Sponsored Advertising placement