As a nurse, youre often the first clinician to notice subtle changes in a patients condition. With stroke, those early observations can determine whether a patient returns to baseline function or faces lasting disability. While classic signs are well-known, many strokes present with subtler or atypical symptoms that can delay recognition and treatment.
Rapid identification and response remain critical for eligible patients to receive thrombolytics or endovascular therapy.
Why Early Recognition Matters: The Numbers
In the United States, more than 795,000 people experience a stroke each year. Stroke caused 165,393 deaths in 2022 and remains a leading cause of serious long-term disability. Globally, stroke is the second leading cause of death and a major contributor to disability-adjusted life years.
Despite improvements in treatment, delays in recognition still limit the number of patients who benefit from time-sensitive interventions. Nurses play a central role in both inpatient surveillance and patient/family education on warning signs.
BE FAST: The Core Assessment Framework
The American Heart Association/American Stroke Association and many clinical programs use the BE FAST mnemonic to capture a broader range of presentations than the original FAST:
- B Balance: Sudden loss of balance, dizziness, or coordination problems (especially posterior circulation strokes).
- E Eyes: Sudden vision changes, including blurred vision, double vision, or loss of vision in one or both eyes.
- F Face: Drooping or numbness on one side. Ask the patient to smile.
- A Arm (or Leg): Sudden weakness or numbness, usually on one side. Ask the patient to raise both arms and hold.
- S Speech: Slurred speech, difficulty finding words, or confusion. Ask the patient to repeat a simple sentence.
- T Time: Note the exact time symptoms started (or last known well) and activate the stroke response immediately.
BE FAST improves detection, particularly for strokes affecting the posterior circulation that might otherwise be missed.
Atypical and Subtle Presentations Nurses Should Recognize
Not every stroke announces itself with obvious unilateral weakness or facial droop. Watch for these, especially in women, older adults, patients with diabetes, and those with posterior circulation involvement:
- Sudden severe headache (more common in hemorrhagic stroke)
- Confusion, agitation, or altered mental status without clear focal deficit
- Nausea/vomiting with dizziness or imbalance
- Hiccups or singultus (persistent) in some brainstem strokes
- Isolated sensory changes or neglect
- Fatigue, generalized weakness, or just not acting right
- Seizure at onset (more common in younger patients or hemorrhagic stroke)
Atypical symptoms contribute to missed or delayed diagnoses. Nurses in emergency departments, med-surg units, and post-procedure areas are particularly well-positioned to catch these changes during routine assessments.
Key Nursing Assessment Priorities
When stroke is suspected:
Determine the last known well (LKW) time. This is often the most critical piece of information for treatment eligibility.Next, perform a focused neurological exam, including NIH Stroke Scale (NIHSS) when protocol allows. Check blood glucose immediately (hypoglycemia can mimic stroke) and assess vital signs, oxygen saturation, and cardiac rhythm. You can also evaluate swallowing ability before any oral intake.
Finally, note any seizure activity or headache characteristics.
Activate your facilitys stroke alert or code stroke protocol without delay. Current AHA/ASA guidelines emphasize organized protocols, rapid imaging, and coordinated team response to minimize door-to-needle times.
Special Considerations
Youll want to be aware that women may present with more non-traditional symptoms such as fatigue, nausea, or altered mental status.
Younger patients can also have strokes. Youll want to consider dissection, hypercoagulable states, or substance use.
Posterior circulation is more likely to involve vertigo, ataxia, diplopia, or crossed findings.
Hemorrhagic vs. ischemic: if there is a severe headache, vomiting, and decreased consciousness, this should raise suspicion for a bleed.
Education and Prevention Role
Nurses remain key educators for patients and families. Teach risk factor modification (hypertension, atrial fibrillation, diabetes, smoking, physical inactivity) and reinforce BE FAST. Public awareness gaps persist, particularly in some demographic groups, contributing to prehospital delays.
Bottom Line for Nursing Practice
The first signs of stroke are not always textbook. Consistent use of structured tools like BE FAST, combined with clinical vigilance for subtler changes, improves detection rates and patient outcomes. Your assessment at the bedside or during triage can make the difference between rapid reperfusion and missed opportunity.
Staying current on stroke guidelines, assessment tools, and care protocols supports both excellent clinical practice and better long-term patient recovery.
Early recognition is one of the most impactful interventions nurses provide. Stay observant, trust your assessment skills, and act decisively when something doesnt look right.
