<prompt> All are true about septic ahritis except:Staph. Aureus is most common causative organismCommon in childrenAffect growth plateE. coli is the commonest causative organism  <response>: Ans. d. E. coli is the commonest causative organismIt is more common in children malesStaphylococcus aureus is the commonest causative organism, other organism are strepto-pneumo Gonococcus. Aspirate the joint examine the fluid. A WBC gram stain should be carried out immediately. Sample of fluid are also sent for full microbiological examination tests for antibiotic sensitivity. 