Learn to recognize a stroke, because time lost is brain lost.
Call 9-1-1 IMMEDIATELY if one or more of the following symptoms suddenly occur:
Numbness or Weakness
Of the face, arm or leg, especially on one side of the body
Confusion
Or trouble speaking or understanding
Vision Disturbances
Or trouble seeing in one or both eyes
Loss of Balance or Coordination
Dizziness or trouble walking
Severe Headache
With no known cause
A stroke is a medical emergency!
If given within three hours of the start of symptoms, a clot-busting drug called tissue plasminogen activator (tPA) can reduce long-term disability for the most common type of stroke.
via http://powertoendstroke.org/tools-family-tree.html.