Clinical reference
Explore validated-style scores and utilities commonly used in Pediatrics. Follow links for full references, limitations, and the interactive calculator.
Search all tools (filters) →Hour-specific total serum bilirubin thresholds (mg/dL) for phototherapy (Fig 2–3) and exchange transfusion (Fig 5–6) in infants ≥35 weeks gestation, with neurotoxicity risk-factor pathway, escalation (exchange −2 mg/dL), and B/A ratio checks per AAP 2022 CPG.
Neonatology · Updated 4/13/2026
Implements AAP 2022 discharge follow-up bands from bilirubin distance to phototherapy threshold (Fig 7), plus KAS 6 (TcB to TSB trigger) and KAS 7 rapid rise thresholds.
Neonatology · Updated 4/13/2026
2017 AAP guideline. Classifies BP as Normal, Elevated, Stage 1, or Stage 2 HTN. Children 1–12 y: percentile-based by age, sex, height; adolescents ≥13 y: adult cutoffs (120/80, 130/80, 140/90). Diagnosis requires 3 visits.
Cardiovascular · Updated 4/13/2026
Evaluate newborn condition at 1 and 5 minutes after birth using the standardized APGAR scoring system.
Neonatology · Updated 4/13/2026
API framework using recurrent wheeze plus major/minor risk criteria.
Respiratory · Updated 4/13/2026
Risk stratification checklist for bacterial meningitis in children with CSF pleocytosis.
Infectious Disease · Updated 4/13/2026
Post-operative pediatric observational pain score.
Pain Management · Updated 4/13/2026
Plot total serum bilirubin against age in hours to assess risk of hyperbilirubinemia in newborns.
Neonatology · Updated 4/13/2026
Pediatric BP reference cut points (SBP/DBP) by sex, date of birth, reference date, and height: daytime table plus nighttime values at 90% of daytime (Ped(z)-style layout). Uses YMed embedded Fourth Report–style height/age grid; KiGGS-specific RKI tables are not embedded—see disclaimer in-tool. Not affiliated with pedz.de.
Cardiovascular · Updated 4/16/2026
Same clinical role as pedz.de body percentiles: sex, dates, anthropometry, z-scores and percentiles for BMI, height/length, weight, weight-for-length, head — YMed uses CDC 2000 LMS only; KiGGS, Kromeyer-Hauschild, WHO-only, Down, and other Ped(z) references are not embedded.
Growth & Development · Updated 4/16/2026
Calculate body surface area for pediatric patients, essential for drug dosing, GFR calculation, and fluid management.
General · Updated 4/13/2026
Estimate skeletal maturity from hand and wrist radiographs using Greulich–Pyle standards: match the X-ray to atlas images, enter chronological age, and review bone age versus chronological age with SD-based interpretation.
Growth & Development · Updated 4/13/2026
AAP low-risk BRUE criteria checklist for infants.
Emergency · Updated 4/13/2026
Updated criteria-based risk stratification for brief resolved unexplained events.
Classification Criteria · Updated 4/13/2026
Haycock BSA, Pettersen 2008–style mitral and aortic annulus z-scores (polynomial ln(mean) vs BSA), and fractional shortening from LVEDD/LVESD—same broad role as Ped(z) M-mode / cardiac z-scores. Does not embed every normative source listed on pedz.de (Kampmann, Gautier, Koestenberger, etc.). Not affiliated with pedz.de.
Cardiovascular · Updated 4/16/2026
Canadian Assessment of Tomography for Childhood Head Injury decision support.
Emergency · Updated 4/13/2026
CSF risk index from glucose, protein, and WBC pattern.
Infectious Disease · Updated 4/13/2026
Children's Hospital of Eastern Ontario Pain Scale behavioral scoring tool.
Pain Management · Updated 4/13/2026
Pediatric/young adult eGFR from height and creatinine (Schwartz CKiD k constants). Ages ≤25.
Nephrology · Updated 4/13/2026
Estimates CSF WBC corrected for RBC contamination in traumatic tap.
Laboratory Medicine · Updated 4/13/2026
Adjusts CSF protein estimate for traumatic blood contamination.
Laboratory Medicine · Updated 4/13/2026
Clinical dehydration severity score in children.
Risk Scores · Updated 4/13/2026
Weight-based resuscitation drug dose estimates for selected ACLS/PALS scenarios.
Emergency Medicine · Updated 4/13/2026
Oral insertion depth estimate and 6–8 mL/kg tidal volume band.
Airway · Updated 4/13/2026
Estimated cuffed/uncuffed internal diameter from age.
Airway · Updated 4/13/2026
Face, legs, activity, cry, consolability (0–10) pediatric pain score.
Pain Management · Updated 4/13/2026
Calculate and plot pediatric growth parameters including height, weight, BMI, and head circumference on WHO and CDC growth charts.
Growth & Development · Updated 4/13/2026
Simplified head circumference percentile estimate by age (months/years), sex, and measured head circumference (educational).
Growth & Development · Updated 4/13/2026
Simplified predicted adult height estimate from age and current height (educational).
Growth & Development · Updated 4/13/2026
Checklist-based educational evaluation: at least 2 of 4 criteria (palpable purpura, age ≤20 at onset, bowel angina, biopsy granulocytes).
Rheumatology · Updated 4/13/2026
Simplified educational interpolation of selected milk nutrients by postpartum age (months).
Nutrition · Updated 4/13/2026
Neonatal TSB risk stratification from date of birth and current date (age in hours), bilirubin in mg/dL or µmol/L, optional direct Coombs-positive surrogate, and gestational age for context. Uses YMed simplified Bhutani-like hour-specific zones—not the German AWMF 024/007 graph. Inspired by Ped(z) hyperbilirubinemia; not affiliated with pedz.de.
Neonatology · Updated 4/16/2026
Hour-specific bilirubin risk zone for newborns using simplified threshold interpolation (educational).
Neonatology · Updated 4/13/2026
Birthweight centile (3rd–97th) for sex-specific gestational age from 33+0 to 42+6 weeks using INTERGROWTH-21st International Newborn Size Standards. Classifies SGA (<10th), AGA, and LGA (>90th) with clinical notes.
Neonatology · Updated 4/13/2026
Kawasaki disease diagnostic criteria (major: fever >=5 days; minor: at least 4 of 7 listed features).
Cardiology · Updated 4/13/2026
Birth weight, length, and head circumference centiles and z-scores for completed gestational age 23+0 to 42+6 weeks, by sex. Uses UK-WHO preterm British 1990 LMS (RCPCH growth-references, MIT). Same clinical role as pedz.de neonatal birth percentiles; not Fenton/Voigt.
Neonatology · Updated 4/16/2026
Phototherapy and exchange transfusion TSB thresholds (mg/dL) by gestational age (23–≥38 wks) and postnatal age band, based on NICE Clinical Guideline 98 treatment threshold graphs.
Neonatology · Updated 4/13/2026
Typical educational respiratory rate reference ranges by age group.
Vital Signs · Updated 4/13/2026
Educational simplified albumin reference range (3.5–5.0 g/dL).
Laboratory Medicine · Updated 4/13/2026
Educational simplified ALP reference ranges by age band.
Laboratory Medicine · Updated 4/13/2026
Educational simplified AFP reference ranges by age band.
Laboratory Medicine · Updated 4/13/2026
Educational simplified LDH reference range.
Laboratory Medicine · Updated 4/13/2026
Predicts risk of radiographic pneumonia in children 3 months to 18 years. Variables: age, triage SpO2, fever, rales, wheeze. AUC ~0.69-0.71.
Respiratory · Updated 4/13/2026
Clinical decision rule to identify children at very low risk of clinically important TBI (ci-TBI) after blunt head trauma. Age-specific criteria for <2 years and ≥2 years. Guides CT imaging; not a substitute for clinical judgment.
Diagnosis · Updated 4/13/2026
Low-risk criteria support in well-appearing febrile infants.
Clinical Decision Rules · Updated 4/13/2026
Quantifies risk of appendicitis on a continuous scale for children 5–18 years presenting with acute abdominal pain. Validated AUC 0.85 (95% CI 0.83–0.87).
Diagnosis · Updated 4/13/2026
Clinical score (0–10) for appendicitis evaluation in children. Eight criteria: migration of pain to RLQ, neutrophilia >75%, leukocytosis >10k, nausea/vomiting, fever >38°C, anorexia, RLQ tenderness on palpation (2), RLQ pain with cough/percussion/hopping (2). Use with clinical judgment and imaging when indicated.
Diagnosis · Updated 4/13/2026
Assess asthma exacerbation severity in children 2+ years. Five components, 1-3 points each; total 5-15. 5-7 mild, 8-11 moderate, 12-15 severe.
Respiratory · Updated 4/13/2026
Calculate and interpret BMI percentiles specifically for children and adolescents aged 2-20 years.
Growth & Development · Updated 4/13/2026
Calculate and visualize blood pressure percentiles for children and adolescents (ages 1-16) based on age, gender, height, and BP readings.
Cardiovascular · Updated 4/13/2026
Calculate weight- or BSA-based medication dosing for pediatric patients with safety checks and common drug-specific calculations.
Pharmacology · Updated 4/13/2026
Early recognition of deteriorating pediatric patients. Scores behavior (level of consciousness), cardiovascular (skin/CRT), and respiratory (rate/effort/O₂) parameters. Total 0–9 with escalation guidance. Staff/carer concern overrides score.
Critical Care · Updated 4/13/2026
Calculate maintenance fluid requirements and deficit replacement for pediatric patients using Holliday-Segar method.
Critical Care · Updated 4/13/2026
Calculate estimated Glomerular Filtration Rate (eGFR) in pediatric patients using the updated Schwartz formula.
Nephrology · Updated 4/13/2026
Assess neurological status in pediatric patients using age-appropriate Glasgow Coma Scale criteria.
Neurology · Updated 4/13/2026
Calculates fluid status in volume per weight and volume per weight per time. Enter weight, intake, output (mL), and period (hours) for net balance, mL/kg, and mL/kg/hr; compare to maintenance.
Critical Care · Updated 4/13/2026
Pediatric adaptation of NIHSS: same 15 items, 0-42 total. Age-appropriate instructions. Do not delay emergent care for scoring.
Neurology · Updated 4/13/2026
Applies international pediatric consensus criteria for SIRS (≥2 criteria with abnormal temperature or leukocyte count), sepsis, severe sepsis, and septic shock based on infection and organ dysfunction.
Critical Care · Updated 4/13/2026
Rapid triage of injured children. Six components, each -1 to +2; total -6 to +12. 9-12 minor, 6-8 potentially life-threatening, 0-5 life-threatening, less than 0 usually fatal.
Critical Care · Updated 4/13/2026
Ponderal (Rohrer) index as weight divided by cubed stature: PI (kg/m³). Reports neonatal convention 100 × birth weight (g) ÷ crown-heel length (cm)³ for proportionality screening with clinical context.
Growth & Development · Updated 4/13/2026
PIAMA preschool risk score risk-band stratification for later asthma.
Respiratory · Updated 4/13/2026
Pediatric eGFR using 0.413 × height(cm) / serum creatinine(mg/dL).
Nephrology · Updated 4/13/2026
Criteria checklist support for infant colic diagnosis.
Diagnostic Criteria · Updated 4/13/2026
Criteria checklist support for infant dyschezia diagnosis.
Diagnostic Criteria · Updated 4/13/2026
Criteria checklist support for infant functional constipation diagnosis.
Diagnostic Criteria · Updated 4/13/2026
Criteria checklist support for infant regurgitation diagnosis.
Diagnostic Criteria · Updated 4/13/2026
Relates total active drug in the syringe (mg), fill volume (mL), pump rate (mL/h), and patient weight to delivery (mg/h, mg/kg/h, µg/kg/min). Solve for dosage received, required rate for a target dose, or required drug mass—same roles as Ped(z) perfusor. Not affiliated with pedz.de.
Pharmacology · Updated 4/16/2026
Simplified risk checklist for vesicoureteral reflux progression/recurrence.
Urology · Updated 4/13/2026