The system is based on the Appendicitis Inflammatory Response (AIR) score, which includes the
following parameters: pain in right iliac fossa, history of vomiting, rebound tenderness or muscular guarding, body temperature,
white blood cell count, proportion of neutrophil granulocytes, and C - reactive protein concentration.
Symptoms include a high fever and at least two of the
following: severe headaches, eye pain, nosebleeds, bleeding gums, joint or bone aches, and low
white blood cell counts.