<prompt> Alvarado score consist ofLeucopeniaAnorexiaDiarrheaPeriumbilical pain  <response>: A number of clinical and laboratory-based scoring systems have been devised to assist diagnosis. The most widely used is the Alvarado score, A score of 7 or more is strongly predictive of acute appendicitis. Symptoms are : score Migratory RIF pain 1 Anorexia 1 Nausea and vomiting 1 Ref: Bailey Love;s Sho Practice of Surgery,E25,Page-1211 