This research focuses on developing a method to assess the use of Large Language Models (LLMs) as a diagnostic support tool for medical professionals. This work has been carried out in collaboration with LINKS Foundation and the Pediatric Emergency Department of the Regina Margherita Hospital in Turin. The Pediatric Emergency Department faces significant challenges, including high patient volumes, time-sensitive decision-making, and the complexity of diagnosing a wide range of conditions. In this demanding environment, the use of artificial intelligence, particularly LLMs, may be a powerful resource thanks to the possibility to analyse large volumes of clinical data and providing timely responses.