Without treatment, the risk of an<unk>  stroke in the three months after a<unk>  is about 20% with the greatest risk occurring within two days of the<unk> . Other sources cite that 10% of<unk> s will develop into a stroke within 90 days, half of which will occur in the first two days following the<unk> . Treatment and preventative measures after a<unk>  (for example treating elevated blood pressure) can reduce the subsequent risk of an<unk>  stroke by about 80%. The risk of a stroke occurring after a<unk>  can be predicted using the ABCD² score. One limitation of the ABCD² score is that it does not reliably predict the level of carotid artery stenosis, which is a major cause of stroke in<unk>  patients. The patient's age is the most reliable risk factor in predicting any level of carotid stenosis in<unk> . The ABCD2 score is no longer recommended for triage (to decide between outpatient management versus hospital admission) of those with a suspected<unk>  due to these limitations.
Transient ischemic attack
Seizure
Subarachnoid hemorrhage
Epidural hematoma
Hemiplegic migraine
Ménière's disease  Ménière's disease  1
Watershed stroke
Migraine