The new Equipment Standards have indicated a move to CUFFED tubes for the pediatric population. We wanted to highlight the corresponding equation for ETT size selection. This equation helps predict the appropriate size ETT and accounts for cuff inflation.

ETT Size Equation: (Age/4) + 4 *subtract 0.5 for cuffed tube

Example: 6 year-old: (6/4) + 4 =5.5 *subtract 0.5 for cuffed tube =5 cuffed tube

OR

ETT Size Equation: (Age/4) + 3.5

Example: 6 year-old: (6/4) + 3.5 = 1.5+3.5 = 5 cuffed tube

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