What is tia in medical terms? Is tia a stroke?

My mother has a diagnosis of TIAs what is that?

TIAs stands for transient ischemic attacks, often simply called “small strokes” in that their effects are often brief, usually lasting less than an hour. They may come repeatedly over a few days or weeks and are an important signal to seek medical care. Symptoms often include a brief numbness, tingling, or weakness on only one side of the body, or a temporary loss of the ability to speak. Most are caused by a small part of an atherosclerotic plaque breaking off from inside an artery that supplies blood to the brain and then moving “downstream.” When one of these small fragments plugs an even smaller artery in the brain, it is called an embolis. The damage caused by a small fragment of a plaque lodging in a small artery in the brain is usually less severe for two reasons: the artery is small and doesn’t supply a large section of the brain, and the material plugging the artery tends to dissolve within a few minutes.

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