Ideally, the distal tip of a properly positioned endotracheal tube (in an adult man) should be posi-tioned approximately how far above the carina?
a. 1 to 3 cm
b. 3 to 6 cm
c. 7 to 9 cm
d. 4 to 6 in
ANS: B
Ideally, the tip of an endotracheal tube should be positioned in the trachea approximately 5 cm above the carina.
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