What does CHADS2 score assess for?

The CHADS2 score is specifically designed to assess the risk of stroke and thromboembolic events in patients with atrial fibrillation. This scoring system takes into account key clinical factors that contribute to an individual’s overall risk profile for stroke. It includes the presence of heart failure, hypertension, age, diabetes, and previous strokes or transient ischemic attacks. By quantifying these risk factors, healthcare providers can determine the need for anticoagulation therapy to reduce the likelihood of stroke in patients with atrial fibrillation. Thus, the correct answer highlights the CHADS2 score's primary purpose in evaluating stroke and clot risk, reinforcing its role in anticoagulation decision-making rather than assessing other conditions or risks.