 How to memorize different tube sizes in pediatric? Ans: as simple as 1-2-3-4. ■ 1 x ETT = Uncuffed ETT diameter ■ 2 x ETT = NG or OG or Foley ■ 3 x ETT = Depth of ETT ■ 4 x ETT = Chest tube (max size) You just have to remember that ETT = 4 + (age/4) Comments are closed.
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