Rochester Criteria (febrile infant)
Rochester criteria for the well-appearing febrile infant (Jaskiewicz 1994).
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Age <= 60 days
- No
- Term gestation and previously healthy
- No
- No focal infection on exam
- No
- WBC 5-15 x10^9/L
- No
- Bands <= 1.5 x10^9/L
- No
- Urine WBC <= 10/HPF
- No
- Stool WBC <= 5/HPF
- No
Result: Rochester: 0 of 7 criteria met -> NOT low risk for SBI per Jaskiewicz 1994 (any failed criterion disqualifies).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- <7 criteria met
- Not low risk per Jaskiewicz 1994 (any failed criterion disqualifies).
- all 7 criteria met
- Low risk for SBI per Jaskiewicz 1994.
What you enter
- Age <= 60 days
- Term gestation and previously healthy
- No focal infection on exam
- WBC 5-15 x10^9/L
- Bands <= 1.5 x10^9/L
- Urine WBC <= 10/HPF
- Stool WBC <= 5/HPF (if diarrhea)
How this is calculated
Jaskiewicz JA, McCarthy CA, Richardson AC, et al. Febrile infants at low risk for serious bacterial infection -- an appraisal of the Rochester criteria and implications for management. Pediatrics. 1994;94(3):390-396. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.