Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 10/17/2025

Immediate Stroke Protocol Management

Prehospital Recognition and Activation

  • The American Heart Association recommends that any person witnessing stroke symptoms must immediately call 9-1-1 and use a validated stroke screening tool, such as the FAST scale, to identify probable stroke signs, with EMS arrival associated with a 3-fold higher likelihood of brain imaging within 25 minutes 4, 2.
  • The American College of Emergency Physicians suggests that EMS dispatch personnel should use stroke recognition protocols to assign priority response, with only 60% of stroke patients currently using EMS despite clear outcome benefits 6, 2.

EMS Field Assessment and Management

  • The American Heart Association recommends that prehospital providers perform immediate assessment and management of airway, breathing, and circulation (ABCs), apply a validated stroke screening tool, and determine the exact time of symptom onset or last known normal time, with EMS prenotification reducing door-to-needle times by 2 minutes 7, 8, 1, 2, 3.
  • The American College of Cardiology suggests that EMS providers should check blood glucose immediately and treat if <60 mg/dL, provide supplemental oxygen only if saturation <94%, initiate cardiac monitoring, and establish IV access per local protocol, with the goal of minimizing on-scene time to ≤15 minutes 4, 7, 8, 9.

Hospital Emergency Department Protocol

  • The American Heart Association recommends that hospitals have an organized protocol with a designated acute stroke team, including physicians, nurses, and laboratory/radiology personnel available 24/7, with the goal of achieving a door-to-needle time of ≤60 minutes in ≥50% of patients 1, 3.
  • The American College of Emergency Physicians suggests that the stroke team should perform a rapid neurological examination, including NIHSS score, obtain vital signs, check capillary blood glucose, obtain a 12-lead ECG, and draw blood tests, with the goal of achieving a door-to-imaging time of ≤25 minutes 4, 1, 3.

Thrombolytic Therapy Decision

  • The American Heart Association recommends that IV alteplase (tPA) is the standard of care for eligible patients within 4.5 hours of symptom onset, with absolute requirements including blood pressure <185/110 mmHg, no evidence of hemorrhage on CT, and symptom onset <4.5 hours, and post-tPA monitoring including neurological assessments every 15 minutes for 2 hours 9, 10.

Regional Stroke Systems

  • The American College of Emergency Physicians suggests that effective stroke systems require coordination between multiple hospital tiers, including primary stroke centers (PSCs) and comprehensive stroke centers (CSCs), with "drip-and-ship" protocols allowing patients to receive IV tPA at PSC before transfer to CSC 7, 1, 2, 3.

Performance Metrics for Quality Improvement

  • The American Heart Association recommends that door-to-needle time should be ≤60 minutes in ≥50% of patients, with secondary goals including door-to-needle time ≤45 minutes in ≥50% of patients, and EMS prenotification rate >67%, with the goal of reducing door-to-needle times and improving patient outcomes 1, 3, 2.

REFERENCES

8

Acute Stroke Management in Emergency Medical Services [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

9

Acute Ischemic Stroke Management [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025