They can also show whether or not there is bleeding in the brain, which can help with some treatment decisions. Other tests may be ordered to help determine the cause of the stroke. For instance, a special X-ray test of the neck arteries can detect blockage. Certain X-ray tests of the heart can show heart failure or changes from a heart attack. A heart tracing, or ECG , can show abnormal heartbeats, such as atrial fibrillation , or certain changes from a heart attack.
Strokes can cause death or permanent disability.
Though many people recover some function in the first several months after a stroke, others show no improvement. Some people have several small strokes over time and slowly get worse with each one. Strokes are not contagious and pose no risk to others. Most people with strokes are treated right away with only aspirin if they do not have bleeding into the brain. This only serves to help prevent further strokes.