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Endotracheal tube for children
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ENDOTRACHEAL TUBE SIZE CHILDREN
FOR INFANTS UP TO 1 YEAR OF AGE
• UNCUFFED TUBE WITH AN INTERNAL DIAMETER OF 3.5 MM• A CUFFED ETT WITH AN INTERNAL DIAMETER OF 3.0 MM MAY BE USED FOR
INFANTS MORE THAN 3.5 KG. AND <1 YEAR
FORMULA
• UNCUFFED ET SIZE = 4 + (AGE / 4) • CUFFED ET SIZE = 3.5 + (AGE / 4)
ONE SIZE LESS
• FOR CUFFED TUBE FOR AGE LESS THAN 1 YR
ADDITIONAL
• KEEP ONE HALF SIZE LARGER AND ONE HALF SIZE SMALLER THAN CALCULATED SHOULD ALSO BE AVAILABLE FOR UNCUFFED OR CUFFED ENDOTRACHEAL TUBE
THUMB RULE
• ET TUBE ID SIZE IS SAME AS THE DIAMETER OF THE LITTLE FINGER OF THE PATIENT