UTICalc
Pretest probability estimation of urinary tract infection in febrile infants aged 2-23 months
UTICalc applies the American Academy of Pediatrics urinary tract infection management guidelines to recommend appropriate evaluation and treatment based on age, gender, and febrile status in children with suspected UTI. This evidence-based tool helps clinicians determine whether imaging is needed and guides antibiotic selection. Use this tool in all children with suspected UTI to guide diagnostic workup and antibiotic therapy according to current guidelines.
Clinically Verified· 5 testsFor educational and informational purposes only. Verify all results before clinical application.
Infant younger than 12 months of age
Female sex or uncircumcised male
Other fever source clearly identified (e.g., bronchiolitis, otitis media)
Dipstick leukocyte esterase result. Leave as 'Not available' if UA not yet obtained.
Urine microscopy white blood cell count per high-power field (hpf).
Gram stain of uncentrifuged urine showing bacteria.
References
- Shaikh N, Hoberman A, Hum SW, et al. Development and Validation of a Calculator for Estimating the Probability of Urinary Tract Infection in Young Febrile Children. JAMA Pediatr. 2018;172(6):550-556.[DOI]
- Shaikh N, Shope MF, Engel A, et al. Refinement and Validation of a Clinical Decision Tool for Febrile Infants Evaluated for Urinary Tract Infection. Pediatrics. 2023;152(3):e2022060437.[DOI]
Reviewed by Daniel Diaz-Gil, MD · Last updated March 2026
Medical disclaimer
This tool is for educational and informational purposes only. It is not a substitute for professional clinical judgment. Always independently verify results before making clinical decisions.