@chai2,
I don't know why you say it wasn't a stroke, Chai. You yourself said it was a TIA, which is a mini-stroke. This is summarized from my first aid book, and it concurs with the link you provided.
STROKES & SEIZURES
A stroke is a cerebrovascular accident (CVA) which damages the brain by a sudden rupture or blockage of a cerebral artery. They result in permanent damage to the brain tissue and the patient is left with some degree of permanent disability. It’s the 3rd leading cause of death in North America.
Ischemia means a local deficiency of blood flow and accounts for 75% of all strokes.
There are two types of strokes: Ischemic and Hemorrhagic.
1. Ischemic strokes are caused by blockage or narrowing of a cerebral artery. There are two types of ischemic strokes:
1.Cerebral thrombosis: develops the same way as coronary artery diseases. A thrombus is a blood clot formed in the brain which obstructs flow to the brain tissue.
2.Cerebral embolism: A stroke caused by the obstruction of a cerebral arty by a clot that travelled to the brain from elsewhere. Embolism may be a blood clot, gas, or foreign material.
2. Hemorrhagic strikes are caused by the rupture of a cerebral artery, resulting in brain damage due to bleeding into the brain tissue and impaired circulation.
Signs and symptoms of strokes may vary, but generally:
Complaint of:
weakness or loss of use of one or more limbs
Loss of feeling (numbness) or pins and needles on one side of the body
Severe headache
Nausea and/or vomiting
Amnesia
Visual difficulties
Mental function:
decreased LOC
Confusion
Trouble communication/garbled speech
Dizziness
Seizures
Change in Vitals:
pupils unequal or dilated
Pulse rapid or slow and strong
Irregular respiration
Motor function:
inability to speak or slurred speech
Facial weakness on one side
Sudden clumsiness or weakness of a limb
Paralysis on one side
Decerebrate or decorticate
Difficulty swallowing