Ask the doctors: Is it okay to discontinue warfarin?
In this scoring system, the fewer points you get, the better. Your history of hypertension and your age give you a CHADS2 score of 2, which implies a stroke risk of 3%–5%. For people with this risk and higher, we recommend warfarin therapy. For people with a CHADS2 score of 1, aspirin and warfarin are both reasonable options. For a CHADS 2 score of 0, no treatment or aspirin alone is reasonable.
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