Vital signs

Foley catheters

Nasogastric tubes

Endotracheal tubes

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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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