FAST is a simple way to remember common warning signs of a stroke. In first aid, it helps you spot a possible stroke quickly and reminds you that time matters.
What does FAST stand for?
FAST stands for:
Ffor faceAfor armsSfor speechTfor time
What does each part mean?
Face
Ask the person to smile. One side of the face may droop or look uneven.
Arms
Ask them to lift both arms. One arm may drift down, feel weak, or not lift properly.
Speech
Listen for slurred speech, strange words, confusion, or trouble speaking clearly.
Time
If you notice any of these signs, call 000 straight away. Stroke treatment is very time-sensitive.
Why is FAST useful?
FAST gives ordinary people a quick check they can remember under pressure. It does not diagnose a stroke, but it helps you recognise common signs fast enough to act.
That makes it closely related to Stroke, but it has a different purpose. Stroke explains the medical emergency more broadly, while FAST is the practical recognition tool.
What should you do if FAST is positive?
- Call
000immediately. - Note when the signs started, if you know.
- Keep the person safe and comfortable.
- Watch their breathing and responsiveness.
- If they become Unresponsive and are not breathing normally, start CPR.
Can someone still be having a stroke if FAST is not clear?
Yes. FAST is very useful, but not every stroke looks the same. If you are seriously concerned about sudden confusion, weakness, severe headache, balance problems, or unusual speech, get urgent medical help.
Quick answer
FAST is a quick way to remember common stroke signs: face drooping, arm weakness, speech trouble, and time to call 000.
Sources reviewed
Reviewed against current Australian first aid, emergency and public-health guidance by the First Aid Glossary Editorial Team. This article is general information and does not replace emergency-operator directions, professional medical advice or hands-on first aid training.
