Diagnosing acute appendicitis: a case study.

Advanced clinical practitioners (ACPs) are experienced health professionals educated to master's level. They are accountable for the assessment, diagnosis and treatment of individuals, and are responsible for making complex decisions. The case study presented in this article critically analyses the consultation involving a male patient in his sixties with a 2-day history of abdominal pain, who was referred by his GP to a surgical assessment unit. Analysis was carried out using the Calgary-Cambridge Model. The article discusses history-taking, abdominal examination and differential diagnoses, and presents the process of how the trainee ACP arrived at the diagnosis of appendicitis.