Transient ischemic attacks (TIAs) are episodes of temporary and focal cerebral dysfunction of vascular origin, rapid in onset, variable in duration, commonly lasting from two to fifteen minutes but by definition no longer than 24 hours. They are often premonitory symptoms of an impending stroke.
TIAs come on quickly, usually going from no symptoms to maximum symptoms in less than 5 minutes
Symptoms of a TIA are the same as those of stroke and disappear in less than 24 hours.
Neuro Diagnostic Tests
To help pinpoint the cause of TIA, your physician may order the following tests:
- Computed Tomography (CT scan)
- Magnetic Resonance Imaging (MRI)
- Doppler Ultrasound
- Magnetic Resonance Angiography (MRA)
- Cerebral Angiography
If your physician suspects that floating blood clots are coming from your heart, special cardiac tests may be necessary.