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transient ischemic attack

A short-lived blockage of blood flow to part of the brain that clears on its own and leaves no lasting brain damage.

TRAN-zee-unt is-KEE-mik uh-TAK noun

Word parts

transient passingisch hold back-emic relating to the blood

What it means

Sometimes called a mini-stroke. A clot or narrowed artery briefly cuts blood flow, causing stroke-like problems such as one-sided weakness or numbness, trouble speaking or loss of vision, that go away, usually within minutes to an hour. It is a warning: many people who have one go on to have a cerebrovascular accidentser-uh-broh-VAS-kyuh-ler AK-sih-dentA stroke: injury to part of the brain because a blood vessel in the brain is blocked or has burst.cerebr/o brainvascul blood vessel-ar relating toFull entry , often within days.

For the nurse

Treat new symptoms as a stroke until proven otherwise: note the time they began and get help at once, since you cannot know they will pass. Teach risk reduction: blood pressure control, stopping smoking, and taking antiplatelet or anticoagulant drugs as ordered.

At a glance

Spanishaccidente isquémico transitorio
Also writtenTIA, TIAs, transient ischemic attacks

Related terms

atrial fibrillation

An irregular heart rhythm in which the upper chambers of the heart quiver instead of beating in an organized way.

ischemia

Too little blood flow to a part of the body, so the tissue does not get enough oxygen.

atherosclerosis

A buildup of fatty deposits (plaque) inside the walls of the arteries.

cerebrovascular accident

A stroke: injury to part of the brain because a blood vessel in the brain is blocked or has burst.

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