Know the Signs: BE-FAST and Why Every Minute Counts
Published in recognition of World Stroke Day, October 29 | Direct Neurology
A stroke can occur at any age and often without warning, yet the outcome depends heavily on how quickly it is recognized and treated. Prompt recognition and emergency care can mean the difference between full recovery and permanent disability. This World Stroke Day, we want our patients and their families to be able to identify the warning signs and to know precisely how to respond.
What Is a Stroke?
A stroke occurs when blood flow to a region of the brain is interrupted, depriving neurons of the oxygen and glucose they need to function. Brain tissue begins to die within minutes, which is why stroke is treated as a time-critical emergency. There are two principal types:
Ischemic stroke (roughly 87% of cases): a blood clot or other blockage obstructs an artery that supplies the brain.
Hemorrhagic stroke: a weakened blood vessel in or around the brain ruptures, and the resulting bleeding damages surrounding tissue.
Both types are medical emergencies, and they cannot be distinguished without brain imaging such as a CT scan or MRI. For this reason, you should never wait to see whether symptoms resolve on their own.
Remember BE-FAST
You may be familiar with the FAST acronym. BE-FAST adds two further signs, balance and eyes, which help identify strokes affecting the posterior circulation (the blood supply to the cerebellum and brainstem) that the original FAST checklist can miss.
B: Balance. Sudden loss of balance or coordination, such as dizziness, unsteadiness, or difficulty walking. These symptoms often reflect involvement of the cerebellum or brainstem, which regulate movement and equilibrium.
E: Eyes. Sudden changes in vision, including blurred or double vision, or partial or complete loss of sight in one or both eyes.
F: Face. Ask the person to smile. Drooping or numbness on one side of the face suggests that the brain's signals to the facial muscles have been disrupted.
A: Arm. Ask the person to raise both arms and hold them out. Weakness, numbness, or downward drift of one arm is a classic sign, because a stroke typically affects one side of the body.
S: Speech. Slurred or unintelligible speech, difficulty finding words, or trouble understanding others. Ask the person to repeat a simple sentence.
T: Time. If you observe any of these signs, call 911 immediately. Note when the symptoms began, or when the person was last known to be well, since this determines which treatments can be given safely.
Other Warning Signs
Strokes do not always follow the textbook pattern. Seek emergency care for any of the following:
Sudden, severe headache, often described as the worst of one's life, which may indicate bleeding in the brain
Sudden confusion or difficulty comprehending speech
Sudden numbness or weakness, particularly on one side of the body
Sudden difficulty walking or loss of coordination
Women in particular may present with less typical symptoms, such as abrupt fatigue, nausea, or generalized weakness, so any sudden change from a person's baseline warrants urgent evaluation.
Why Time Matters
Neurologists often say "time is brain." In a stroke caused by a large blocked artery, millions of neurons can be lost every minute that blood flow remains interrupted, and treatment is most effective when it begins early:
Thrombolytic therapy, medication that dissolves the clot, can be given to eligible patients within a limited window after symptom onset, generally within 4.5 hours.
Mechanical thrombectomy, a procedure in which a catheter is used to retrieve a clot from a large artery, can benefit selected patients for up to 24 hours after symptom onset.
The sooner a patient reaches a stroke-ready hospital, the more treatment options remain available.
What to Do If You Suspect a Stroke
Call 911 immediately. Do not drive yourself or the patient to the hospital. Emergency medical services can begin treatment en route and alert the hospital so the stroke team is ready on arrival.
Record the time the symptoms began, or when the person was last seen in their normal state.
Stay with the person and keep them calm, comfortable, and safe from falls.
Do not give food, drink, or medication, including aspirin, unless instructed by emergency personnel. Swallowing may be impaired, and aspirin can worsen a stroke caused by bleeding.
Don't Ignore a "Mini-Stroke"
A transient ischemic attack (TIA) produces stroke-like symptoms that resolve within minutes to hours, usually because the blockage clears on its own. Because the symptoms disappear, many people dismiss them, but a TIA is a strong warning that a full stroke may follow, often within days. If you or a loved one has experienced such symptoms, even briefly, seek emergency evaluation and follow up with your neurologist.
Reducing Your Risk
A large proportion of strokes are preventable. Working with your doctor to manage the major modifiable risk factors is the most effective strategy:
Hypertension (high blood pressure), the leading modifiable risk factor
Diabetes and elevated cholesterol
Atrial fibrillation, an irregular heart rhythm that can allow clots to form in the heart
Tobacco use and excessive alcohol consumption
Physical inactivity, an unhealthy diet, and obesity
Poor sleep, including untreated obstructive sleep apnea
Regular checkups, consistent use of prescribed medications, physical activity, and a heart-healthy diet all lower stroke risk substantially.
Share This Post
On World Stroke Day, one of the most valuable things you can do is share what you know. Teach BE-FAST to family, friends, and coworkers; a single person who recognizes the signs and acts quickly can save a life.
If you have concerns about your stroke risk, or have experienced symptoms that worry you, contact our office at 925-222-5252 to schedule an evaluation.
If you think someone is having a stroke right now, call 911.
This post is for educational purposes and is not a substitute for medical advice.
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