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Recognising a Stroke: Remember FAST
A stroke happens when the blood supply to part of the brain is cut off. Getting help quickly can save a life and reduce long-term harm. The easiest way to remember the warning signs is the word FAST.
The FAST check
- Face — Is one side of the face drooping? Ask the person to smile.
- Arms — Can they lift both arms and keep them up? Does one arm drift down?
- Speech — Is their speech slurred or muddled? Ask them to repeat a simple sentence.
- Time — If you see any of these signs, time is critical. Call 111 right away.
What to do
If you notice any of these signs, even if they come and go, call 111 immediately and ask for an ambulance. Do not wait to see if the symptoms pass.
Make a note of the time the symptoms started — this helps the medical team decide on treatment. Stay with the person and keep them calm and comfortable until help arrives.
Other warning signs
- Sudden numbness or weakness, especially on one side of the body
- Sudden confusion or trouble understanding others
- Sudden trouble seeing in one or both eyes
- A sudden, severe headache with no known cause
- Sudden dizziness or loss of balance

Jackie, RN
SilverSmart Health Guide — helping New Zealanders understand their health in plain English.
This article is general information only and is not a substitute for advice from your doctor or healthcare provider.
