Intubating the child 5 November, 201619 November, 2016 emkfoundation EMS Endotracheal Tube Depth: Estimate 3 x Internal Diameter of Endotracheal Tube (ETT) e.g. 4.0 ETT => Depth = 12 cm. Only used for ETT 3.0 or greater Anticipate and Estimate, but Confirm with CXR!!! Add to Anti-Banner Share this:Click to share on Facebook (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Telegram (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window) Related emkfoundation A&Edepartment