Size of tracheal tube in a newborn weighing 2.5kg is: (A) 2, (B) 3, (C) 4, (D) 5
Answer is B. Guidelines for Tracheal Tube Size and Depth of InseionTUBE SIZE (MM INTERNAL DIAMETER)DEPTH OF INSEION FROM UPPER LIP (cm)WEIGHT (g)GESTATION (wk)2.56.5-7<1,000<2837-81,000-2,00028-343/3.58-92,000-3,00034-383.5/4.0>=9>3,000>38Ref: Nelson; 20th edition; Page no: 846