Definition Stroke or “brain attack” is an acute CNS injury that results in neurologic S/S brought on by a reduction or absence of perfusion to a territory of the brain. The disruption in flow is from either an occlusion (ischemic) or rupture (hemorrhagic) of the blood vessel.
![RNSG 1413 Oxygenation Chapter 39[1]](https://img.pdfslide.us/doc/110x75/55291de9550346662e8b4633/rnsg-1413-oxygenation-chapter-391.jpg)
