Stroke Code

The goal of this study is to test the efficacy of a rapid bedside blood test in determining if a stroke is happening in children who present to the emergency department with stroke symptoms. The main questions it aims to answer are: * To determine the sensitivity of detecting a large vessel occlusion (LVO) as the etiology of acute ischemic stroke (AIS) in a pediatric population using a point-of-care blood-based assay (LVOne). * To determine the positive predictive value (PPV) of LVOne in a pediatric population Participants will: * Provide a small sample of blood to be used to test the accuracy of the device. * Participants will still receive all standard of care work-up for stroke, which could include computed tomography/magnetic resonance imaging (CT/MRI).

There are everal scales designed to help ambulance paramedics to identify a patient with a stroke and activate a stroke code. These scales were never tested in the field in a large unselected patient sample. We aim to perform an in-the field head tot head comparison of all published stroke scales designed to be used by ambulance paramedics