UTI and Pyelonephritis

September 15, 2023

Help my kid has a UTI! Does cranberry juice have any benefit for UTIs? Find out with us in today’s episode about urinary tract infections (UTIs)! 

Follow us on Twitter/X @Pediagogypod and Instagram/Threads @pediagogy and connect with us at 


This episode was written by Dr. Tammy Yau and Dr. Lidia Park, with content support from Dr. Natasha Nakra. Drs. Tammy and Lidia take full responsibility for any errors or misinformation. 


Key points: 

-A fever may be your only symptom in a young child with a UTI

-If you think it’s a UTI, get a clean specimen for culture. A positive culture has more than 50k CFUs/ml on a catheter sample and more than 100k CFUs/ml on a clean catch/void sample.

-Most common bacteria causing UTIs are E. coli, Klebsiella, Proteus, Enterococcus, and Enterobacter

-Simple cystitis may only need 3-10 days of treatment depending on age, whereas pyelonephritis needs 10-14 days.