First Aid to Save a Stroke Patient

A stroke is a medical emergency that occurs when blood flow to part of the brain is interrupted or reduced by a blocked blood vessel, or when bleeding occurs in or around the brain. This deprives brain cells of the oxygen and nutrients they need.

Recognizing stroke symptoms and seeking emergency medical help quickly can significantly affect treatment options and outcomes. Some stroke treatments are most effective when assessment and treatment begin as soon as possible.

Sudden facial or arm weakness, speech difficulty, loss of balance or vision, or a sudden severe headache should therefore be treated as warning signs requiring immediate emergency assistance, even if the symptoms improve or disappear.

What Is a Stroke?

A stroke occurs when blood supply to part of the brain is interrupted or reduced, or when bleeding damages brain tissue. Brain cells depend on a continuous supply of oxygen and nutrients, so interrupted blood flow can result in tissue injury.

The effects vary according to the area of the brain involved, the type and severity of the stroke, and how quickly appropriate treatment can begin.

Types of Stroke and Transient Ischemic Attack

First: Ischemic Stroke

Ischemic stroke is the most common type and occurs when a blood vessel supplying the brain becomes blocked, often because of a blood clot or arterial disease that interferes with blood flow.

Second: Hemorrhagic Stroke

A hemorrhagic stroke occurs when a blood vessel in or around the brain ruptures and causes bleeding. Uncontrolled high blood pressure, aneurysms, and other vascular conditions may contribute to this type of stroke.

Third: Transient Ischemic Attack

A transient ischemic attack, or TIA, is not a completed stroke. It occurs when blood supply to part of the brain is temporarily interrupted and can cause the same symptoms as a stroke before they resolve within minutes or hours.

Symptoms should never be ignored simply because they disappear. A TIA can indicate an increased risk of a future stroke, and it is not possible at the start of symptoms to reliably distinguish a TIA from a full stroke without medical assessment.

Symptoms of Stroke

Stroke symptoms usually begin suddenly and may include:

• Sudden weakness or numbness of the face, arm, or leg, particularly on one side of the body.
• Drooping on one side of the face or difficulty smiling normally.
• Difficulty speaking, slurred speech, or difficulty understanding other people.
• Sudden loss or blurring of vision in one or both eyes.
• Sudden dizziness, loss of balance, or difficulty walking or coordinating movements.
• Severe weakness or inability to move part of the body.
• A sudden severe headache without a known cause, particularly with some hemorrhagic strokes.
• Difficulty swallowing in some patients.

Using FAST to Recognize a Stroke

• F – Face: Ask the person to smile and check whether one side of the face droops.
• A – Arms: Ask the person to raise both arms and check whether one arm drifts downward.
• S – Speech: Ask them to repeat a simple sentence and listen for slurred or unusual speech.
• T – Time: If any of these signs are present, call emergency medical services immediately and note when the symptoms began or when the person was last known to be well.

Factors That Increase the Risk of Stroke

• High blood pressure, one of the most important modifiable stroke risk factors.
• Smoking.
• Diabetes.
• High cholesterol and certain lipid disorders.
• Atrial fibrillation and other abnormal heart rhythms.
• Cardiovascular disease.
• Physical inactivity.
• Overweight or obesity.
• Obstructive sleep apnea.
• Excessive alcohol intake.
• Use of certain illicit stimulants such as cocaine and amphetamines.
• Increasing age.
• Family history and certain genetic factors.
• Estrogen-containing hormonal treatments in certain circumstances, depending on individual risk factors.

Having one risk factor does not mean that a person will inevitably have a stroke. Managing modifiable risk factors can reduce overall stroke risk.

Complications of Stroke

A stroke may cause temporary or permanent complications depending on its location, severity, speed of treatment, and rehabilitation. Possible complications include:

• Weakness or paralysis affecting one side or part of the body.
• Difficulty speaking or understanding language.
• Difficulty swallowing.
• Problems with memory, thinking, or attention.
• Emotional and psychological changes, including depression in some patients.
• Pain, numbness, or sensory disturbances.
• Difficulty walking, moving, or maintaining balance.
• Need for assistance with some activities of daily living.

How Stroke Is Diagnosed in Emergency Care

Stroke assessment begins rapidly with the symptoms, neurological examination, and determination of when symptoms began or when the patient was last known to be well. Imaging and other investigations are then used to identify the type and location of the stroke and determine treatment eligibility.

• Blood pressure measurement, blood glucose testing, and selected blood tests.
• CT imaging of the brain, particularly to identify or exclude intracranial bleeding.
• MRI in selected cases to identify ischemic injury or provide additional diagnostic information.
• CT angiography or MR angiography when evaluation of an arterial blockage is required.
• ECG to identify abnormal heart rhythms such as atrial fibrillation.
• Echocardiography or additional tests in selected patients to identify potential sources of emboli.

It is not accurate to say that a TIA never appears on CT or that MRI is always required. Imaging decisions depend on the clinical situation, timing, and local stroke protocols.

First Aid and Treatment for Stroke

First: First Aid

When a stroke is suspected, the priority is immediate activation of emergency medical services and rapid transport to an appropriate hospital.

• Call emergency medical services immediately: Do not wait to see whether symptoms improve. Even temporary symptoms may represent a TIA.
• Record the onset time: Note when symptoms began or when the person was last known to be well.
• Keep the patient safe and comfortable: Do not force them to stand or walk if weakness or balance problems are present.
• Do not give food or drink: Stroke can impair swallowing and increase the risk of choking or aspiration.
• Do not give aspirin on your own: The stroke may be hemorrhagic, in which case aspirin can worsen bleeding.
• Do not give blood-pressure medication without medical advice: Blood-pressure management during acute stroke depends on the type of stroke and planned treatment.
• Monitor consciousness and breathing: If the person becomes unresponsive and is not breathing normally, follow emergency-service instructions and begin CPR if trained.
• Do not allow the patient to drive: Ambulance transport is preferred because the patient's condition may deteriorate and emergency care can begin during transport.

Second: Stroke Treatment

Treatment begins after imaging and clinical assessment establish the type of stroke. Ischemic and hemorrhagic strokes require fundamentally different approaches, so clot-dissolving drugs or antiplatelet medications should not be given before intracranial bleeding has been excluded.

Treatment of Ischemic Stroke

Intravenous Thrombolysis

Some patients with acute ischemic stroke may be eligible for intravenous thrombolytic treatment with medicines such as alteplase or tenecteplase after bleeding has been excluded and eligibility criteria have been assessed.

Treatment is commonly used within a 4.5-hour window in eligible patients. Advanced imaging can also help select certain patients with later or unknown symptom onset for treatment.

Mechanical Thrombectomy

Selected patients with a large-vessel arterial blockage may benefit from endovascular mechanical thrombectomy. Depending on the location of the blockage, imaging findings, and individual clinical factors, treatment may be considered several hours after the patient was last known to be well.

Mechanical thrombectomy is not appropriate for every stroke, and eligibility is determined by the specialist stroke team.

Medication After Ischemic Stroke

Antiplatelet medicines such as aspirin may be used in selected patients to prevent further clots, while anticoagulants such as warfarin or other agents may be appropriate for specific conditions such as atrial fibrillation.

These medicines are not interchangeable or appropriate for every patient, and the timing of treatment depends on the stroke type, previous treatment, and bleeding risk.

Statins, blood-pressure treatment, diabetes management, and other measures may be used to reduce future stroke risk. Rapid blood-pressure reduction is not a routine treatment for every patient with acute ischemic stroke and must be individualized by the medical team.

Carotid Surgery

Some patients with significant carotid artery narrowing may benefit from procedures such as carotid endarterectomy. The decision depends on the degree of narrowing, symptoms, and the patient's overall health.

Treatment of Hemorrhagic Stroke

Treatment of hemorrhagic stroke focuses on controlling bleeding, reducing harmful pressure within the skull, managing contributing factors, and treating the underlying cause when possible.

• Stopping or reversing anticoagulation when appropriate.
• Managing blood pressure according to the type of bleeding and clinical condition.
• Surgical or endovascular procedures in selected patients to treat bleeding, aneurysms, or vascular abnormalities.
• Drainage procedures when hydrocephalus or dangerous intracranial pressure occurs.

Some patients may also require nutritional support when swallowing is impaired, intravenous fluids when needed, supplemental oxygen when oxygen saturation is low, and rehabilitation as soon as clinically appropriate.

Preventing Stroke

• Monitor and manage high blood pressure.
• Stop smoking.
• Control diabetes according to the medical treatment plan.
• Monitor and manage cholesterol when required.
• Identify and treat atrial fibrillation and other relevant heart conditions.
• Engage in regular physical activity appropriate for individual health.
• Follow a balanced diet rich in vegetables, fruit, whole grains, legumes, and appropriate protein sources.
• Limit saturated and trans fats and heavily processed foods rather than eliminating all dietary fat.
• Maintain a healthy weight or pursue gradual weight loss when appropriate.
• Limit or avoid alcohol according to individual health and medical advice.
• Take prescribed secondary-prevention medication after stroke or TIA as directed and do not stop treatment without medical advice.