Pediatric Endotracheal Tube (ETT) Size

Pediatric airways grow along with the patient, so selection of tube size must be tailored to the patient’s age and size. Broselow tape or other weight-based pediatric resuscitation tools also have estimated ETT sizes but may not always be available. Multiple formulae have been proposed for pediatric ETT size selection, with (age/4) + 3.5 being the most widely used for cuffed tubes.

Authors

Derek Chi Fung Tam (ORCID: https://orcid.org/0000-0001-6139-3467)

Publication Details

Journal: Evidence to Action Official Journal of MDCalc
Published: 2026-04-17
DOI: https://doi.org/10.65357/001c.160323
Primary Topic: Airway Management and Intubation Techniques
Type: article
Field-Weighted Citation Impact: 0.00

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article

Pediatric Endotracheal Tube (ETT) Size

Derek Chi Fung Tam

Apr 17, 2026

Evidence to Action Official Journal of MDCalc

Airway Management and Intubation Techniques

article

Pediatric Endotracheal Tube (ETT) Size

Derek Chi Fung Tam

April 17, 2026article en

Abstract

Evidence to Action Official Journal of MDCalcVol. 022026(01)

Openalex Percentile: Top 13%

Airway Management and Intubation Techniques

DOI Open Access PDF OpenAlex

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Pediatric Endotracheal Tube (ETT) Size — Derek Chi Fung Tam · Evidence to Action Official Journal of MDCalc (2026) | TGRS Research Map | TGRS