F.A.S.T. Warning Signs Use the letters in F.A.S.T to Spot a Stroke F = Face Drooping – Does one side of the face droop or is it numb? Ask the person to smile. Is the person’s smile uneven? A = Arm Weakness – Is one arm weak or numb? Ask the person to raise both arms. Does one arm drift downward? S = Speech Difficulty – Is speech slurred? T = Time to call 911
