Registered Nurses' Association of Ontario

Nursing Best Practice Guidelines

Signs and Symptoms of Stroke

The signs and symptoms of stroke include:

  • Weakness: Leg, arm or facial weakness on one side of the body (hemiparesis) or numbness and tingling in the face, arm or leg (dysesthesia)
  • Trouble speaking: Slurred speech (dysarthria) or inability to speak and/or understand (aphasia)
  • Visual disturbances: Loss of vision, particularly in one eye or double vision
  • Headache: Sudden, severe and unusual headache
  • Dizziness: Sudden onset vertigo, associated with nausea and lack of coordination (ataxia) (HSFO, 2003b)