Table 4

The SCAN rule

Expedite CT brain imaging or arrange MRI for late-presenting patients with minor stroke if one or more of the following are present on history taking or assessment:
(S) Severe hypertension at presentation: systolic blood pressure ≥80 mm Hg or diastolic blood pressure ≥110 mm Hg
(C) Confusion
(A) Anticoagulation use before stroke onset
(N) Nausea and vomiting