Stroke Warning Signs: The FAST Test and What to Do

What are the early warning signs of a stroke?

A stroke occurs when blood supply to part of the brain is cut off, causing brain cells to die within minutes. The most common early warning signs include sudden numbness or weakness on one side of the body, abrupt confusion or difficulty speaking, vision loss in one or both eyes, severe unexplained headache, and loss of balance or coordination. Deccan Hardikar Hospital in Pune offers dedicated Neuro Science services for the rapid diagnosis and management of stroke and related neurological emergencies.

What does FAST stand for in stroke recognition?

FAST is a widely used acronym to help the public identify a stroke quickly and take action. It covers the four most recognisable signs:

Beyond FAST, additional warning signs include:

• Sudden severe headache with no known cause
• Abrupt loss of vision in one or both eyes
• Sudden dizziness, loss of balance, or difficulty walking
• Numbness or weakness in the face, arm, or leg — especially on one side

What are silent stroke symptoms and signs that appear days before?

Not all strokes announce themselves dramatically. Silent strokes produce no obvious symptoms yet cause damage that may be detected only on brain imaging. Separately, some people experience warning symptoms in the days before a major stroke — often linked to a transient ischaemic attack (TIA), sometimes called a mini-stroke.

Possible warning signs in the days before a stroke:

• Brief episodes of confusion or memory lapses
• Temporary vision disturbances in one eye
• Sudden, short-lived weakness or numbness in a limb
• Transient difficulty finding words or speaking clearly
• Unexplained fatigue or sudden severe headache
• Brief loss of balance or coordination

Signs of a silent stroke (often discovered incidentally):

• Subtle memory problems or difficulty concentrating
• Mild changes in mood or personality
• Slight weakness or clumsiness that was not previously present

What happens in the brain during a stroke, and what causes most strokes?

During a stroke, blood flow to a region of the brain is interrupted. Without oxygen and glucose, brain cells begin to die rapidly. There are two primary types:

• Ischaemic stroke — caused by a blood clot blocking an artery supplying the brain. This accounts for the majority of strokes.
• Haemorrhagic stroke — caused by a ruptured blood vessel bleeding into or around the brain.

The area of the brain affected determines which functions are impaired — speech, movement, vision, or memory. The extent of damage depends on how quickly blood flow is restored.

Common underlying causes and risk factors:

• High blood pressure (hypertension) — the single most significant modifiable risk factor
• Atrial fibrillation and other heart rhythm disorders
• Diabetes mellitus
• High cholesterol and atherosclerosis
• Smoking and tobacco use
• Obesity and physical inactivity
• Prior TIA or stroke history

How can you check for a stroke at home?

If you suspect someone is having a stroke, use the FAST test immediately (see the FAST Test section above). You can also use the expanded BE-FAST check:

1. B — Balance: Has the person suddenly lost balance or coordination?
2. E — Eyes: Has there been a sudden change in vision?
3. F — Face: Ask them to smile — does one side droop?
4. A — Arms: Ask them to raise both arms — does one drift down?
5. S — Speech: Is speech slurred, garbled, or absent?
6. T — Time: Note the exact time symptoms began and call emergency services at once.

When should you call emergency services or see a neurologist?

Stroke is a time-critical emergency. Call emergency services immediately — do not wait to see if symptoms improve — if any of the following occur:

• Any single FAST or BE-FAST sign, even if it lasts only a few minutes
• Sudden severe headache described as the worst of one's life
• Abrupt loss of vision, speech, or limb function
• Sudden loss of consciousness or unresponsiveness
• Seizure with no prior history of epilepsy

See a neurologist promptly (within 24 hours) — even if symptoms have resolved — if you experience:

• A brief episode of weakness, numbness, or speech difficulty lasting less than 24 hours (possible TIA)
• Recurring unexplained headaches with neurological symptoms
• Sudden memory lapses or confusion episodes

Deccan Hardikar Hospital in Pune provides specialist neuro physician consultations and emergency neurological care for stroke assessment and management.

How does Deccan Hardikar Hospital in Pune manage stroke care?

Deccan Hardikar Hospital in Pune is a NABH Pre-Accredited superspeciality hospital with a dedicated Neuro Science department equipped to manage acute stroke, TIA, and related neurological emergencies. The hospital's Emergency and ICU services support rapid triage, and the neurology team works alongside neurosurgeons for cases requiring surgical intervention.

The care pathway at Deccan Hardikar Hospital includes:

• Rapid neurological assessment and brain imaging
• Medical management of ischaemic and haemorrhagic stroke
• Access to neurosurgical intervention when indicated
• Coordination with the ICU for critical monitoring
• Rehabilitation planning as part of the recovery pathway
• Trauma care integration for stroke patients with concurrent injuries

The hospital is located at 1160/61, University Rd, Shivajinagar, Pune — 411005, and serves patients across Western Maharashtra.