Decision Aid

Should I take an oral blood thinner for atrial fibrillation?

The decision aid is for you if:

  • You have certain medical conditions that increase your chance of having a stroke or blood clot.
    • Based on CHA2DS2-VASc score equal or greater than 2 for Men and equal or greater than 3 for Females, or an annual risk of stroke greater than or equal to 2%.
    • CHA2DS2-VASc score stands for the following: C-Congestive Heart Failure, H-Hypertension, A-Age greater than or equal to 75, D-Diabetes Mellitus, S-Prior history of a stroke, transient ischemic attack, or blood clot, V-Vascular Disease, A-Age=65-74, S-Female sex.
    • Your clinician will help you determine your individual chance of developing a stroke or blood clot.
  • You don't have a history of rheumatic heart disease or mechanical valve.