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Pediatric Equipment Size Chart

Parameters & Equipment — Harriet Lane

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1 What is the Pediatric Equipment Size Chart?

PediAid's equipment size chart is badged in-app as the 'Harriet Lane Reference' and described as an 'age-based sizing guide for airway & vascular access.' Selecting one of 9 age bands, from Premie through greater than 16 Years, surfaces an estimated weight range plus a full table of airway and vascular equipment sizes for that age, with a footer reference to the Harriet Lane Handbook.

2 When to use it

  • Selecting correctly sized airway equipment (endotracheal tube, laryngoscope blade, LMA, oral/nasal airway) before intubating a child of known or estimated age
  • Choosing an appropriate IV catheter, central line, or chest tube size for a procedure by age band
  • Cross-checking equipment size against estimated weight when age is known but weight has not yet been measured
  • Preparing a resuscitation or procedure tray in advance for a pediatric patient in a known age range
  • Teaching trainees typical age-to-equipment-size relationships across the pediatric age spectrum

3 Formula & method

The user selects one of 9 age groups (Premie, Newborn, 6 Months, 1 Year, 2-3 Years, 4-6 Years, 7-10 Years, 11-15 Years, >16 Years) from a dropdown. The app then displays an estimated weight range in a highlighted card, followed by a table covering Bag Valve Mask, Nasal Airway, Oral Airway, Blade, ETT (endotracheal tube), LMA, Glidescope, IV Catheter, CVL, NGT/OGT, Chest Tube, and Foley catheter sizes for that age. For example, the Newborn band (3.5-4 kg) lists ETT 3.0-3.5 and Blade MIL 0, while the 1 Year band (10 kg) lists ETT 4.0-4.5.
  • Harriet Lane Handbook

4 Frequently asked questions

What reference is PediAid's equipment size chart based on?

The screen is badged 'Harriet Lane Reference' in the app and its footer states 'Reference: Harriet Lane Handbook.'

What age groups are available in the chart?

Premie, Newborn, 6 Months, 1 Year, 2-3 Years, 4-6 Years, 7-10 Years, 11-15 Years, and greater than 16 Years.

What equipment sizes are shown for each age group?

Bag Valve Mask, Nasal Airway, Oral Airway, laryngoscope Blade, ETT, LMA, Glidescope, IV Catheter, CVL, NGT/OGT, Chest Tube, and Foley catheter, alongside an estimated weight range.

What ETT size does PediAid suggest for a newborn?

For the Newborn band (estimated weight 3.5-4 kg), the chart lists ETT size 3.0-3.5 with a MIL 0 blade.

Does the chart also give an estimated weight for each age group?

Yes -- a highlighted 'Estimated Weight' card appears at the top of the results as soon as an age group is selected.

5 Related tools

Fetal Development Week by Week

Week-by-Week from LMP

NRP Algorithm

Neonatal Resuscitation Program

IAP Immunization Schedule

IAP 2022 & National (NIS)

Neonatal Scoring Systems

Apgar · Downes · Sarnat · Thompson
For qualified clinicians. This page and the PediAid app are a clinical aid only. Calculations and reference data must be verified against the patient's clinical context, the source guideline and your local protocols before any treatment decision is made.