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Paediatric Emergency Medicine (PEM) Calculators & More

Tools for Paediatric & Pediatric emergency care. Optimised for fast bedside use and mobile viewing.

Resuscitation Calculator

Rapid WETFLAG and drug calculations for time-critical paediatric resuscitation (Cardiac Arrest & Anaphylaxis). For patients 3kg - 50kg

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Intravenous Drug Dose Calculator

Instant IV dosing support for emergency medications, including bolus volumes and infusion rates.

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Oral Drug Dose Calculator

Oral medication dosing guide for ED inpatient and discharge scripts (e.g., Paracetamol/Ibuprofen).

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Fluid Calculator

Calculate maintenance fluids (Holiday-Segar) and fluid deficit correction for dehydration.

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Corrected Age Calculator

Quickly calculate the corrected age for preterm infants and neonates.

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Burn Fluid Resuscitation Calculator

Calculate fluid requirements using the Parkland Formula based on Total Body Surface Area (TBSA).

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Normal Vital Signs by Age

Quick reference for normal vital sign ranges including heart rate, respiratory rate, blood pressure, and SpO₂ by age group.

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Blood Pressure Percentiles

Age and sex-specific blood pressure percentiles (50th, 90th, 95th, 99th) for children aged 1-17 years with interpretation guide.

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PECARN Head Injury Rules

Clinical decision tool to identify children at very low risk of traumatic brain injury who do not require CT imaging.

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Growth Percentile Calculator

Calculate weight, height/length, and BMI percentiles using WHO (0-2 years) and CDC (2-20 years) growth standards.

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PICU Mortality Risk Scores

Calculate PIM3 and PRISM IV mortality risk scores for PICU risk stratification and severity of illness assessment.

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Westley Croup Score

Clinical scoring system to assess croup severity and guide treatment decisions (dexamethasone, nebulized epinephrine).

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Pediatric Glasgow Coma Scale (pGCS)

Age-appropriate assessment of consciousness level in infants and children using modified GCS criteria for different age groups.

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Discharge Safety Net Generator

Generate comprehensive safety netting advice for parents/caregivers including red flags, home care instructions, and follow-up guidance.

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Paracetamol Poisoning Calculator

Assessment and management of acute paracetamol/acetaminophen overdose using dose calculations and Rumack-Matthew nomogram interpretation.

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Rapid Potassium Correction

Calculate K+ replacement doses with detailed step-by-step preparation, dilution, and infusion instructions for peripheral and central lines.

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Paediatric Discharge Advice

Print ready to go discharge advice for common presentations to your Emergency Department.
Available in English and Bahasa Malaysia.

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EM Jokes

Need a laugh between resuscitations? Random Emergency Medicine jokes to lighten your shift!

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About this Site

Medical references, editorial policy, disclaimers, and developer credits.

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About PEMCalc

PEMCalc provides free, open-access Paediatric Emergency Medicine calculators designed to assist clinicians in high-pressure environments. From resuscitation drug doses to fluid management, our tools are optimised for mobile use at the bedside.