Appropriate endotracheal tube sizes and approximate depths.
Endotracheal tube sizing:
Group
|
ETT size (mm)
|
Children
|
(4 + age)/4
|
Adult women
|
7.0–8.0
|
Pregnant women
|
6.5–7.5
|
Adult men
|
8.0–9.0
|
Appropriate endotracheal tube depths:
Group
|
ETT depth
(cm from alveolar ridge)
|
Children
|
(12 + age)/2
|
Adult women
|
20–22
|
Pregnant women
|
20–22
|
Adult men
|
22–24
|
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