Those children, who have fever of unknown cause, must have a urine test done. It costs very little even in a private clinic, and will give a very good indication if urinary infection is present. Once urine infection has been detected, all children must undergo further tests like an urine culture, ultrasound evaluation, an MCU
(Micturating cystourethrogram) X-ray to find out abnormality in urinary tract, and decide on treatment. Additional tests include nuclear scans which are a special type of imaging of the kidneys to look for any evidence of scarring. In this a small amount of radio-isotope tracer is injected in the arm vein. The isotope will be taken up by the kidneys and scan will give information about kidney function and also presence of any scars.