Question

At what level does the trachea bifurcates ?

a) Upper border of T4

b) Lower border of T4

c) 27.5 cm from the incisors

d) Lower border of T5

Answer 1

Correct Answer - B 

Lower border of T4 [Ref BDC Sth/e Volume 1 p. 267] Trachea bifurcates at carina, at the level of lower border of T, or T4 - T5 disc space.