Acute Stroke
Priority Actions and Care
When a stroke strikes, time is brain. Learn the time-sensitive priorities that protect neurons and save lives.
What Is a Stroke?
A stroke (cerebrovascular accident) occurs when blood flow to part of the brain is interrupted, depriving neurons of oxygen and glucose. Without flow, brain tissue begins to die within minutes.
Two Major Types
Recognizing Stroke: BE-FAST
The Time Window Rule
Eligibility for treatment depends on time since last known well (LKW) — the last moment the patient was seen functioning normally, NOT the moment symptoms were discovered.
Core Rule: Priority Sequence
When stroke is suspected, the nurse follows a strict order. Airway and circulation come before diagnostics; CT scan must precede any clot-busting therapy.
tPA: Eligibility Checklist
Key Distinction: Blood Pressure
| Ischemic (no tPA) | After tPA / Hemorrhagic | |
|---|---|---|
| BP goal | Permit \(\leq 220/120\) | Keep \(\lt 185/110\) |
| Why | Maintains perfusion to penumbra | Reduces bleeding risk |
| Action | Treat only if very high | Treat aggressively |
How to Apply: First 60 Minutes
Example 1: New Arrival
A 68-year-old arrives with sudden right-sided weakness and slurred speech. Last seen normal 90 minutes ago. What is the nurse's first priority action?
Example 2: During tPA
A patient receiving IV tPA suddenly develops a severe headache, vomiting, and rising blood pressure. What does the nurse do?
Example 3: BP Decision
An ischemic stroke patient (NOT a tPA candidate) has a BP of \(196/104\). The new graduate wants to lower it quickly. Is this correct?
Common Mistakes
Summary: At a Glance
| Priority | Action | Rationale |
|---|---|---|
| 1. ABCs | Airway, breathing, circulation | Sustain life first |
| 2. Time | Establish LKW, stroke alert | Time is brain |
| 3. CT | Non-contrast head CT | Rule out bleed |
| 4. NPO | Hold food until swallow screen | Prevent aspiration |
| 5. Treat | tPA or thrombectomy if eligible | Restore perfusion |
Question 1 of 5
A patient arrives with stroke symptoms. The nurse's first priority action is to:
Question 2 of 5
Before IV tPA can be administered, the nurse must ensure the patient has had a:
Question 3 of 5
The standard IV tPA treatment window from last known well is up to:
Question 4 of 5
A patient receiving IV tPA develops a sudden severe headache and decreased level of consciousness. The nurse should first:
Question 5 of 5
An ischemic stroke patient who is NOT a tPA candidate has a BP of \(198/106\). The nurse should: