History and Examination Findings in Diverticulitis

Key findings during initial evaluation include abdominal pain in the left lower quadrant, tenderness in the same region, and alterations in bowel habits. Abdominal pain is the most common symptom, particularly on the left side, with a positive likelihood ratio for diverticulitis. Tenderness in the left lower quadrant indicates a higher likelihood of the condition. Changes in bowel habits, including constipation and diarrhea, are prevalent. Systemic symptoms like fever can be present, but signs of peritonitis suggest acute complications.