Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

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

Last Updated: 9/5/2025

Acute Ischemic Stroke Management

Initial Assessment and Treatment

  • The American Heart Association recommends that patients with suspected stroke should undergo rapid assessment within 10 minutes of arrival to the emergency department 3
  • Oxygen should be administered to hypoxemic stroke patients (oxygen saturation <94%) 3
  • The American College of Cardiology suggests establishing IV access and obtaining baseline blood studies (complete blood count, coagulation studies, blood glucose) 3
  • Perform neurological screening assessment and order emergent CT scan of the brain 3
  • Cardiac monitoring is recommended during the first 24 hours to detect atrial fibrillation and potentially life-threatening arrhythmias 3

Acute Reperfusion Therapies

  • The American Heart Association recommends IV alteplase (0.9 mg/kg, maximum dose 90 mg over 60 minutes with initial 10% as bolus) should be administered to eligible patients within 4.5 hours of symptom onset 1
  • Treatment should be initiated as quickly as possible with a target door-to-needle time of less than 60 minutes 1
  • Blood pressure must be controlled below 185/110 mmHg before tPA administration and maintained below 180/105 mmHg for at least 24 hours after treatment 1
  • Mechanical thrombectomy is recommended for eligible patients with large vessel occlusions (internal carotid artery or MCA-M1) 1

Critical Care Management

  • Admission to a specialized stroke unit or neurocritical care unit is essential for optimal outcomes 1
  • Airway support and ventilatory assistance are recommended for patients with decreased consciousness or bulbar dysfunction 1
  • Identify and treat sources of hyperthermia (temperature >38°C) 1
  • Correct hypovolemia with intravenous normal saline 1
  • Treat hypoglycemia (blood glucose <60 mg/dL) to achieve normoglycemia 1
  • Manage hyperglycemia to achieve blood glucose levels between 140-180 mg/dL 1

Systems of Care

  • Hospitals should function as primary stroke centers or have pre-established transfer protocols to appropriate stroke centers 5
  • Telemedicine can extend stroke expertise to underserved areas 7
  • Standardized stroke orders or integrated stroke pathways improve adherence to best practices 1
  • A stroke system should ensure that hospitals identified as "acute stroke capable" possess appropriate resources and deliver primary stroke care according to national recommendations 6