Respiratory Care for the Ventilated Neonate

Table 1

Endotracheal tube insertion depth for oro- and nasotracheal intubation in neonates [28].

Gestational age (weeks)	Current weight (kg)	Endotracheal tube length at lips (cm)	Endotracheal tube length at nostril (cm)
23–24	0.5–0.6	5.5	6.5
25–26	0.7–0.8	6.0	7.0
27–29	0.9–1.0	6.5	7.5
30–32	1.1–1.4	7.0	8.0
33–34	1.5–1.8	7.5	8.5
35–37	1.9–2.4	8.0	9.0
38–40	2.5–3.1	8.5	9.5
41–43	3.2–4.2	9.0	10.0