TRUE about the appendicular rupture is/are all, EXCEPT:

"Early antibiotics don't prevent rupture, that's why immediate appendectomy is the recommended treatment of acute appendicitis". Appendicular rupture Rupture occur most frequently distal to the point of luminal obstruction along the antimesenteric border of appendix. Rupture should be suspected in the presence of fever >39 degree Centigrade and WBC count > 18,000/ mm^3 Risk Factor for perforation of appendix Extreme of age < 5 year and > 65 years Immunosuppression Diabetes mellitus Fecalith obstruction Pelvic appendix Previous abdominal surgery Ref: Schwaz 9/e, Page 1078.