CHADS2 Score for Atrial Fibrillation Stroke Risk

  1. Congestive Heart Failure history?    Yes +1
  2. Hypertension history?    Yes +1
  3. Age ≥ 75?    Yes +1
  4. Diabetes Mellitus history?    Yes +1
  5. Stroke symptoms previously or TIA?    Yes +2

If there is h/o stroke high risk group.

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