Blade Size Estimate
ETT Size:  (Age/4) + 4 for uncuffed, (Age/4) + 3.5 for cuffed
Preemie <1.4kg: 00
Newborn: 0
Neonate/infant: 1
2 blade starting at 2 yo
3 blade in 3rd grade (8-9 yo)
ETT Size:  (Age/4) + 4 for uncuffed, (Age/4) + 3.5 for cuffed
Preemie <1.4kg: 00
Newborn: 0
Neonate/infant: 1
2 blade starting at 2 yo
3 blade in 3rd grade (8-9 yo)
Endotracheal Cuffed Tube Estimate
1 yr, 10kg, size 4
5 yr, 20kg, size 5
10 yr, 30 kg, size 6
1 yr, 10kg, size 4
5 yr, 20kg, size 5
10 yr, 30 kg, size 6
Cuffed and uncuffed ETT are acceptable outside neonatal age
Depth of Tube Placement: 3 x uncuffed ETT size (cm)
Neonate: Nasal septum to tragus in cm + 1 cm
Neonate: Nasal septum to tragus in cm + 1 cm
Atropine
While atropine is not routinely recommended for pretreatment before RSI, it has been frequently used for infants younger than one year due to their predilection for bradycardia during RSI. However, rare cases of ventricular tachycardia and fibrillation have been seen in pretreatment of children, hence it is not recommended for this age group.
While atropine is not routinely recommended for pretreatment before RSI, it has been frequently used for infants younger than one year due to their predilection for bradycardia during RSI. However, rare cases of ventricular tachycardia and fibrillation have been seen in pretreatment of children, hence it is not recommended for this age group.
Intubation 
Extubation
Rapid sequence intubation
Awake intubation
Delayed sequence intubation
Extracorporeal membrane oxygenation
Blind digital intubation
Emergent delivery