Equipment < 3Kg 3-5 Kg Small Infant
6-7 Kg
Infant
8-9 Kg
Toddler
10-11 Kg
Small child
12-14 Kg
Child
15-18 Kg
Child
19-23 Kg
Large Child
24-29 Kg
Adult
30-36 Kg
Resuscitation Bag     Infant/Child Infant/Child Child Child Child Child Child Adult
Oxygen Mask (NRB)     Pediatric Pediatric Pediatric Pediatric Pediatric Pediatric Pediatric Pediatric/Adult
Oral Airway (mm)     50 50 60 60 60 70 80 80
Laryngoscope Blade (size)     1 Straight 1 Straight 1 Straight 2 Straight 2 Straight 2 Straight or Curved 2 Straight or Curved 3 Straight or Curved
ET Tube (mm)† < 1 Kg 2.5
Uncuffed
1-2 Kg 3.0
Uncuffed
2-4 Kg 3.5
Uncuffed
5 Kg 3.5
Uncuffed
3.5 Uncuffed
3.0 Cuffed
3.5 Uncuffed
3.0 Cuffed
4.0 Uncuffed
3.5 Cuffed
4.5 Uncuffed
4.0 Cuffed
5.0 Uncuffed
4.5 Cuffed
5.5 Uncuffed
5.0 Cuffed
6.0 Cuffed 6.5 Cuffed
ET Tube Insertion Length (cm) 0.5 Kg: 6.5
1 Kg: 7
2 Kg: 8
3 Kg: 9-9.5
4 Kg: 9.5-10
5 Kg: 10-10.5
10.5-11 10.5-11 11-12 13.5 14-15 16.5 17-18 18.5-19.5
Suction Catheter (F)     8 8 10 10 10 10 10 10-12
BP Cuff   Neonatal #5/Infant Infant/Child Infant/Child Child Child Child Child Child Small Adult
IV Catheter (ga)     22-24 22-24 20-24 18-22 18-22 18-20 18-20 16-20
IO (ga)     18/15 18/15 15 15 15 15 15 15
NG Tube (F)     5-8 5-8 8-10 10 10 12-14 14-18 16-18
Urinary Catheter (F)   5 8 8 8-10 10 10-12 10-12 12 12
Chest Tube (F)     10-12 10-12 16-20 20-24 20-24 24-32 28-32 32-38

Abbreviations: BP, blood pressure; ET, endotracheal; F, French; IO, intraosseous; IV, intravenous; NG, nasogastric; NRB, nonrebreathing; ga, gauge; mm, millimeters; cm, centimeters

†Per 2010 AHA Guidelines, in the hospital cuffed or uncuffed tubesmay be used (see below for sizing of cuffed tubes).
Modified with permission from Artemis Pediatric software © 2012 eBroselow.