A 3-year-old girl presents with a temperature of 39.5 °C and no obvious source of infection on examination. She appears well. According to CPS guidance on urinary tract infections, what is the most appropriate next step?AReassure and observe without investigationsBOrder chest radiograph and blood culturesCObtain a urine sample for urinalysis, and if abnormal, send catheter or suprapubic urine for cultureDEmpirically start oral antibiotics for presumed UTI without testingEPerform lumbar puncture immediatelyCheck my answer