Neonatal ETT Size — FRCA Final MCQ

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EasyPaediatric AnaesthesiaNeonatal ETT SizeFRCA Final

A neonate requires emergency surgery. The safe maximum cuffed ETT size for a term neonate weighing 3.5 kg is:

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Correct answer: C — 3.5 mm

Term neonates typically require a 3.0-3.5 mm ID cuffed ETT (or 3.5 uncuffed). APA guidelines now support cuffed tubes in neonates >3 kg with cuff pressure monitoring <20 cmH2O. The formula (age/4)+3.5 does not apply below age 1.

Reference: APA/DAS – 2015 – Paediatric airway