ABCD2 Score – Stroke Risk
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ABCD2 score for predicting the risk of stroke after a TIA

  • Age > 60 years                                                      (1 point)
  • Blood pressure > 140/90mmHg                            (1 point)
  • Clinical features:
    • Unilateral weakness                                      (2 points)
    • Speech disturbance without weakness         (1 point)
  • Duration of symptoms:
    • >60 mins                                                       (2 points)
    • 10-60 mins                                                    (1 point)
    • <10 mins                                                       (0 points)
  • Diabetes                                                                 (1 point)
The corresponding 2 day risk for subsequent stroke are:
  • 0-3: 1%
  • 4-5: 4%
  • 6-7: 8%

If ≥4 the patient is at high risk. They should be treated with 300mg Aspirin immediately and specialist assessment and investigations should be commenced within 24 hours of the onset of symptoms.

If ≤3 the patient is low risk. Treat with 300mg Aspirin and refer to be seen by a specialist and investigated within 1 week of the onset of symptoms.

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Dr Tom Leach

Dr Tom Leach MBChB DCH EMCert(ACEM) currently works as a GP Registrar and an Emergency Department CMO in Australia. He is also a Clinical Associate Lecturer at the Australian National University. After graduating from his medical degree at the University of Manchester in 2011, Tom completed his Foundation Training at Bolton Royal Hospital, before moving to Australia in 2013. He started almostadoctor whilst a third year medical student in 2009. Read full bio

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