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ENDOTRACHEAL TUBES
Typical weights and tube sizes
for age: Endotracheal tubes
| Endotracheal
tubes in small children are uncuffed, because of the anatomic
differences of the larynx: In adults (left), the vocal cords
form the narrowest portion of the larynx and trachea, necessitating
stabilization of the tube with a cuff. In small children (right),
the cricoid ring is the narrowest portion, and its circular lumen
stabilizes the tube without the need for a balloon cuff. |
 |
|
Age |
Weight (kg) |
ET-tube
(mm) |
| 0-6 months |
3.5-7 |
3.5-4.0 |
| 1 year |
10 |
4.5 |
| 2 years |
12 |
5.0 |
| 3 years |
14 |
5.0 |
| 5 years |
18 |
5.5 |
| 6 years |
21 |
6.0 |
| 8 years |
27 |
6.5 |
| 12 years |
varies |
7.0 |
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