CRP and appendicitis: In addition to clinical tests, complete blood count parameters (leukocytes, neutrophils, lymphocytes, platelets, platelet derivatives), which are part of routine blood biochemistry parameters, as well as markers such as total bilirubin (TBil), C-reactive protein (CRP), and procalcitonin are widely used as a next step in the diagnosis of acute appendicitis, as they vary according to the presence and severity of inflammation16.