Complicated UTI

Children younger than 6 MO old

• Ultrasound scan during acute infection → Responds well within 48 hrs: No · Atypical Infection: Yes · Recurrent Infection: Yes
• Ultrasound scan within 6 wk of infection → Responds well within 48 hrs: Yes · Atypical Infection: No · Recurrent Infection: No
• DMSA scan 4-6 mo after acute infection → Responds well within 48 hrs: No · Atypical Infection: Yes · Recurrent Infection: Yes
• Micturating cystograms → Responds well within 48 hrs: Consider if ultrasound scan abnormal · Atypical Infection: Yes · Recurrent Infection: Yes

Children 6 MO to 3 YR old

• Ultrasound scan during acute infection → Responds well within 48 hrs: No · Atypical Infection: Yes · Recurrent Infection: No
• Ultrasound scan within 6 wk of infection → Responds well within 48 hrs: No · Atypical Infection: No · Recurrent Infection: Yes
• DMSA scan 4-6 mo after acute infection → Responds well within 48 hrs: No · Atypical Infection: Yes · Recurrent Infection: Yes
• Micturating cystograms → Responds well within 48 hrs: No · Atypical Infection / Recurrent Infection: Not routine; consider if dilation on ultrasound, poor urine flow, non–E. coli infection, or family history of vesicoureteric reflux

Children older than age 3 YR

• Ultrasound scan during acute infection → Responds well within 48 hrs: No · Atypical Infection: Yes · Recurrent Infection: No
• Ultrasound scan within 6 wk of infection → Responds well within 48 hrs: No · Atypical Infection: No · Recurrent Infection: Yes
• DMSA scan 4-6 mo after acute infection → Responds well within 48 hrs: No · Atypical Infection: Yes · Recurrent Infection: Yes
• Micturating cystograms → Responds well within 48 hrs: No · Atypical Infection: No · Recurrent Infection: No