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Specialty Index: Pediatrics
 

Medical Equations

 

A-a Gradient

a/A Ratio

Absolute Phagocyte Count

Adjusted Cerebrospinal Fluid White Blood Cell Count in the Presence of Red Blood Cells

Aris birth weight-for-gestational age percentiles, singletons, 22 to 42 weeks gestation

Blood pressure percentiles, 0 to 17 years (2017 standard)

Body mass index (BMI) percentiles and Z-scores, females 2 to 20 years (CDC)

Body mass index (BMI) percentiles and Z-scores, males 2 to 20 years (CDC)

CDC height-for-age percentiles for females, 2 to 20 years

CDC height-for-age percentiles for males, 2 to 20 years

CDC infant growth percentiles, 0 to 36 months

CDC infant head circumference-for-age percentiles, 0 to 36 months

CDC infant length-for-age percentiles, 0 to 36 months

CDC infant weight-for-age percentiles, 0 to 36 months

CDC infant weight-for-length percentiles, 0 to 36 months

CDC weight-for-age percentiles for females, 2 to 20 years

CDC weight-for-age percentiles for males, 2 to 20 years

CDC weight-for-height percentiles for females, 77 to 121 cm

CDC weight-for-height percentiles for males, 77 to 121 cm

Corrected/Adjusted Age of Preterm Infants

Diffusing capacity for carbon monoxide (DLCO) corrected for anemia

Diffusing capacity for carbon monoxide (DLCO) correction of predicted value for anemia (SI units)

Endotracheal tube size for children (Age 1 to 8 years)

Estimated Date of Delivery (EDD) by LMP and Ultrasound

Estimated Delivery Date (Patient information)

Fenton weight-for-gestational age percentiles, 22 to 50 weeks gestation (2007, not sex-specific)

Gestational Age from Estimated Date of Delivery (EDD)

Glomerular Filtration Rate Estimation (eGFR) by CKiD U25 Equations with Creatinine and/or Cystatin C in Children and Adults ≤25 Years Old (2021)

Glomerular Filtration Rate Estimation (eGFR) by Schwartz Formula

Glomerular Filtration Rate Estimation (eGFR) by Updated Schwartz Formula

Height Potential: A Child's Target Height Based on Midparental Height

Maintenance fluid calculation for children based on daily fluid requirements

Maintenance Fluid Calculation for Children Based on Hourly Fluid Requirements

MELD Score for End-Stage Liver Disease (NOT appropriate for patients under the age of 12) (SI units)

MELD Score for End-Stage Liver Disease (NOT appropriate for patients under the age of 12)

MELDNa Score (2008) for End-Stage Liver Disease (NOT appropriate for patients under the age of 12) (SI units)

MELDNa Score (2008) for End-Stage Liver Disease (NOT appropriate for patients under the age of 12)

MELDNa Score (2016) (SI units)

MELDNa Score (2016)

Olsen infant BMI-for-gestational-age percentiles, 24 to 41 weeks gestation

Olsen infant head circumference-for-gestational-age percentiles, 23 to 41 weeks gestation

Olsen infant length-for-gestational-age percentiles, 23 to 41 weeks gestation

Olsen infant weight-for-gestational-age percentiles, 23 to 41 weeks gestation

Oxygenation index in neonates, children, and adults

Peak expiratory flow prediction in females (5 to <18 years)

Peak expiratory flow prediction in males, 5 to <18 years

PELD Score for End-Stage Liver Disease in patients less than 12 years old (original)

PELD-Cr Score for End-stage Liver Disease in patients less than 12 years old (2023 update)

PFT Predicted Values for Boys MultiCalc

PFT Predicted Values for Girls MultiCalc

Pregnancy Gestation by LMP and Ultrasound Biometry

QT Interval Correction (EKG, Multi-Equation)

Urinary Protein Excretion Estimation

WHO assessment of malnutrition in females, 0 to 24 months

WHO assessment of malnutrition in females, 2 to 5 years

WHO assessment of malnutrition in males, 0 to 24 months

WHO assessment of malnutrition in males, 2 to 5 years

WHO infant growth percentiles, 0 to 24 months

WHO infant head circumference-for-age percentiles, 0 to 24 months

WHO infant length-for-age percentiles, 0 to 24 months

WHO infant weight-for-age percentiles, 0 to 24 months

WHO infant weight-for-length percentiles, 0 to 24 months

Z Score to Percentile Estimation

 

Clinical Criteria

 

Acetaminophen (Paracetamol) Toxicity Assessment (Original, 1975)

Acetaminophen (Paracetamol) Toxicity Assessment (Revised 2023)

Apgar Score

Bacterial Meningitis Score for Children

Centor Strep Pharyngitis Criteria With McIsaac Modification

Ehlers-Danlos Syndrome IV (vascular type) Diagnostic Criteria

ELBW Infant Prognosis Prediction

Jones Criteria for Diagnosis of Rheumatic Fever

Kawasaki Disease Diagnostic Criteria

Kawasaki Disease Kobayashi Score

Mycoplasma Pneumoniae Prediction in Children with Pneumonia

Newborn Hyperbilirubinemia Assessment (original, 2004)

Newborn hyperbilirubinemia assessment for infants born at 35 weeks or more gestation (2022 update)

PEACH Score: Estimating Perioperative Mortality in Adult Congenital Heart Disease Surgery

Pediatric Ulcerative Colitis Activity Index (PUCAI)

Septic Arthritis Prediction in Pediatric Hip Pain Syndrome

Westley croup severity score (appropriate for use in children ≤6 years of age)

 

Decision Trees

 

Arterial Blood Gas Interpretation TreeCalc

Asthma Hospitalization One Year Risk TreeCalc

Mycoplasma Pneumoniae Prediction TreeCalc

PECARN Head Trauma Head CT Decision Tree

Rabies Post Exposure Prophylaxis (PEP) TreeCalc

Smallpox Risk Assessment (CDC version 1.0, 2002) TreeCalc

 

Unit and Dose Converters

 

Flow Unit Conversions

Length Unit Conversions

Time Unit Conversions

Volume Unit Conversions

Weight Unit Conversions