<P> The Cincinnati Prehospital Stroke Scale (abbreviated CPSS) is a system used to diagnose a potential stroke in a pre-hospital setting . It tests three signs for abnormal findings which may indicate that the patient is having a stroke . If any one of the three tests shows abnormal findings, the patient may be having a stroke and should be transported to a hospital as soon as possible . The CPSS was derived from the National Institutes of Health Stroke Scale developed in 1997 at the University of Cincinnati Medical Center for pre-hospital use . </P> <Ol> <Li> Facial droop: Have the person smile or show his or her teeth . If one side doesn't move as well as the other so it seems to droop, that could be sign of a stroke . <Ul> <Li> Normal: Both sides of face move equally </Li> <Li> Abnormal: One side of face does not move as well as the other (or at all) </Li> </Ul> </Li> <Li> Arm drift: Have the person close his or her eyes and hold his or her arms straight out in front for about 10 seconds . If one arm does not move, or one arm winds up drifting down more than the other, that could be a sign of a stroke . <Ul> <Li> Normal: Both arms move equally or not at all </Li> <Li> Abnormal: One arm does not move, or one arm drifts down compared with the other side </Li> </Ul> </Li> <Li> Speech: Have the person say, "You can't teach an old dog new tricks," or some other simple, familiar saying . If the person slurs the words, gets some words wrong, or is unable to speak, that could be sign of stroke . <Ul> <Li> Normal: Patient uses correct words with no slurring </Li> <Li> Abnormal: Slurred or inappropriate words or mute </Li> </Ul> </Li> </Ol> <Li> Facial droop: Have the person smile or show his or her teeth . If one side doesn't move as well as the other so it seems to droop, that could be sign of a stroke . <Ul> <Li> Normal: Both sides of face move equally </Li> <Li> Abnormal: One side of face does not move as well as the other (or at all) </Li> </Ul> </Li>

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