ATRIA is a simple risk scheme to help predict warfarin-associated hemorrhage.

Select the risk factors that apply to your patient to calculate the ATRIA bleeding risk score.

(hemoglobin <13 g/dl men, <12 g/dl women)
+3 points
Severe Renal Disease
(GFR <30ml/min; dialysis dependent)
+3 points
Age ≥75
+2 points
Any prior hemorrhagic diagnosis
+1 point
Diagnosed hypertension
+1 point
Risk assessment

Risk assessment

Here you can find validated, interactive tools to help you calculate stroke and bleeding risk of your patients

About the Coagulation Center

The Coagulation Center is an educational resource for healthcare professionals. Guided by a global editorial board of experts, the Coagulation Center offers a range of clinical perspectives on balancing the benefit and risk of anticoagulation in a rapidly changing landscape. Within the Coagulation Center you will find roundtable discussions on anticoagulation management, materials for patient management including patient case studies, tools to help evaluate bleeding risk and stroke risk, and downloadable resources for your practice.