Stroke Recognition: BE FAST and the Window That Decides Everything

Stroke is one of the most treatable emergencies in medicine — if it reaches hospital fast enough. The clot-busting treatment must be given within 4.5 hours of symptom onset (sometimes extended to 24 hours for specific cases). Most Indian stroke patients arrive too late for it because recognition was delayed. The specific mnemonic BE FAST is the single most useful piece of neurological first aid a family can know.

BE FAST — the six things to check

• B — Balance: sudden loss of balance or coordination, unable to stand.
• E — Eyes: sudden loss of vision in one or both eyes, double vision, blurred vision.
• F — Face: face drooping on one side. Ask them to smile — is one side lower?
• A — Arms: sudden weakness or numbness. Ask them to raise both arms — does one drift down?
• S — Speech: sudden slurred speech or trouble understanding words. Ask them to repeat a simple sentence.
• T — Time: if ANY of the above, call ambulance immediately. Note the time symptoms started.

Other stroke signs

• Sudden severe headache without other cause — 'worst headache of my life'.
• Sudden confusion or difficulty understanding.
• Sudden numbness on one side of the body.
• Sudden difficulty walking or dizziness.
• Sudden trouble swallowing.

The critical time windows

• Timeframe: 0-4.5 hours · What's possible: IV thrombolysis (clot-busting drug) window
• Timeframe: 4.5-24 hours · What's possible: Mechanical thrombectomy possible for large vessel strokes
• Timeframe: After 24 hours · What's possible: Only supportive care and rehabilitation

What to do — the specific sequence

• Call ambulance (108 or local emergency) immediately.
• Note the exact time symptoms started or were first noticed.
• If patient was fine when they went to sleep and woke with symptoms, note the last time they were seen normal.
• Do not give food, water, or medicine (swallowing may be impaired).
• Do not give aspirin unless doctor confirms — some strokes are bleeding, not clots.
• Position the patient on their side if unresponsive but breathing.
• Loosen tight clothing.
• Stay with the patient.
• Bring medicine list and health record.

Why timing is everything

Brain tissue dies at approximately 1.9 million neurons per minute during a stroke. The specific difference between arriving in 1 hour vs 3 hours is millions of neurons — and often the difference between walking out of the hospital and permanent disability.

Common reasons for delay in India

• Attributing to 'weakness' or 'sleep paralysis'.
• Waiting for family to gather.
• Calling GP first instead of ambulance.
• Trying home remedies.
• Symptoms improving briefly (TIA — transient ischaemic attack, warning sign).
• Overnight symptoms noticed only in morning.
• Lack of stroke-ready hospitals in the area.

The specific TIA — transient warning

A TIA is stroke symptoms that resolve within 24 hours (usually minutes). It is a specific warning of impending full stroke — 10-15% risk of stroke within 3 months. Treat every TIA as urgent even if symptoms resolve — evaluation within 24 hours can prevent the full stroke.

Choosing the hospital

• Not every hospital can perform thrombolysis or thrombectomy.
• Ask ambulance to take to nearest 'stroke-ready' hospital.
• Better a slightly farther comprehensive stroke centre than a nearer but incapable facility.
• Comprehensive stroke centres in India: mostly tier-1 city corporate and government teaching hospitals.
• Know your nearest one in advance — the specific research done on a normal day, not the crisis.

After the acute event

• Extensive rehabilitation — physical, speech, occupational therapy.
• Secondary prevention — antiplatelets or anticoagulants.
• Cardiovascular risk factor management aggressive.
• Long-term monitoring for recurrence.
• Family support and caregiver planning.

Stroke is a specific emergency where minutes decide outcome for years. The specific act of recognising early and calling ambulance immediately is not paranoia — it's the specific intervention that changes lives.

References

• AHA — stroke recognition
• ISA — Indian Stroke Association
• WHO — stroke