Currently there are 4 physicians on staff in the ED who are fellowship trained in point of care emergency ultrasound, fully credentialed and are already performing ED based evaluations for appendicitis on a limited basis. The current standard of care is a point of care ultrasound as first-line imaging for patients with suspected appendicitis when a credentialed EP is available to perform the scan. We intend to evaluate the performance of EP-performed point of care ultrasound in the diagnosis of acute appendicitis in ED patients. This study would primarily investigate the accuracy of ultrasound as compared to the criterion standard of either abdominal CT results or surgical pathology report.