<prompt> Which one of the following statements is false with regard to pyuria in childrenPresence of more than 5 WBCHPF for girls and more than 3 WBCHPF for boysInfection can occur without pyuriaPyuria may be present without urinary tract infectionIsolated pyuria is neither confirmatory nor diagnostic for urinary tract infection  <response>: Pyuria - leukocytes in the urine suggest infection, but infection can occur in the absence of pyuria, consequently this finding is more confirmatory than diagnostic Pyuria can be present without UTI isolated pyuria is unusual since inflammatory reaction in the kidney or collecting system are also associated with hematuria Pyuria is 5 WBC HPF of clean catch MID stream urine sample. 