Stroke Awareness Month: Know the Warning Signs to React F.A.S.T

June is Stroke Awareness Month. Brightshores health representatives are urging the public to utilize the F.A.S.T. acronym—Face, Arms, Speech, and Time—to recognize stroke symptoms. According to reporting from CollingwoodToday.ca, immediate recognition and emergency response are critical to reducing long-term disability and improving survival rates.

A stroke occurs when blood flow to the brain is interrupted, depriving brain tissue of oxygen and nutrients. Brightshores emphasizes that recognizing these signs quickly can determine whether a patient recovers fully or suffers permanent impairment.

What are the F.A.S.T. stroke warning signs?

The F.A.S.T. acronym provides a standardized method for bystanders and patients to identify a stroke in progress. Brightshores and the Heart and Stroke Foundation of Canada identify the following markers:

• Face: One side of the face droops or feels numb. When the person smiles, the smile may appear uneven.
• Arms: One arm feels weak or numb. If the person attempts to raise both arms, one may drift downward.
• Speech: Speech may be slurred or the person may be unable to speak or understand simple commands.
• Time: If any of these symptoms are present, the person must call 911 or local emergency services immediately.

Medical professionals warn against waiting to see if symptoms improve. According to the American Stroke Association, every minute a stroke goes untreated, the brain loses approximately 1.9 million neurons.

Why is immediate treatment critical for stroke patients?

The speed of medical intervention directly impacts the effectiveness of available treatments. Two primary interventions depend heavily on the time elapsed since the onset of symptoms.

Intravenous thrombolysis, often using the drug tissue plasminogen activator (tPA), is used to dissolve clots in ischemic strokes. According to the Mayo Clinic, tPA must generally be administered within 3 to 4.5 hours of the first symptom to be effective and safe.

Mechanical thrombectomy, a procedure to physically remove a large clot from a brain artery, has a broader window. The American Heart Association states that this procedure can be performed up to 24 hours after symptom onset for certain eligible patients, though benefits are highest when performed earlier.

How does BE-FAST differ from F.A.S.T.?

While Brightshores highlights F.A.S.T., some medical institutions use an expanded version called BE-FAST to capture a wider range of symptoms. This expanded version adds Balance and Eyes to the checklist.

The “B” stands for Balance, noting a sudden loss of coordination or dizziness. The “E” stands for Eyes, referring to sudden vision loss or double vision. The Heart and Stroke Foundation of Canada notes that these additional signs are often associated with strokes occurring in the posterior circulation of the brain.

Comparing the two methods, F.A.S.T. focuses on the most common anterior circulation strokes, while BE-FAST provides a more comprehensive screening tool for all stroke types.

What factors increase the risk of stroke?

Medical research identifies several modifiable and non-modifiable risk factors that contribute to stroke probability. According to the Centers for Disease Control and Prevention (CDC), hypertension is the leading modifiable risk factor.

Other significant risk factors include:

• High cholesterol and diabetes.
• Smoking and excessive alcohol consumption.
• Atrial fibrillation, a type of irregular heartbeat that can cause clots to form in the heart.
• Age, family history, and ethnicity.

Managing these conditions through medication and lifestyle changes can lower the likelihood of a stroke event. The CDC reports that controlling high blood pressure can significantly reduce the risk of both ischemic and hemorrhagic strokes.

What happens during a stroke emergency?

When a patient arrives at a hospital with stroke symptoms, the primary goal is to determine the type of stroke. Ischemic strokes are caused by blockages, while hemorrhagic strokes are caused by bleeding in the brain.

A CT scan or MRI is typically the first step in diagnosis. According to the Mayo Clinic, these imaging tools allow doctors to see if there is a bleed or a clot, which dictates whether the patient receives clot-busting medication or surgical intervention to stop bleeding.

Following the acute phase, patients typically move to a rehabilitation setting. This involves physical, occupational, and speech therapy to regain lost functions. The Heart and Stroke Foundation of Canada states that early initiation of rehabilitation is linked to better long-term functional outcomes.