Intubation

Anatomical structures

A realistic real time video.

ETT size and length

Internal diameter (mm) = (Age/4) + 4 for an uncuffed tube
Internal diameter (mm) = (Age/4) + 3 for a cuffed tube

Length (cm) = (Age/2) + 13 for an oral tube
Length (cm) = (Age/2) + 15 for a nasal tube