EJV and IJV

Q: The size of the external jugular vein (EJV) is ________________ related to the size of the internal jugular vein (IJV)? - Select one

A) directly

B) inversely

Answer: B

There is an inverse correlation between the size of the external and internal jugular veins.

Clinical significance: If you see a large EJV on patient's neck, expect potentially more difficult internal jugular venepuncture.

#procedures

References:

1. Stickle BR, McFarlane H. Prediction of a small internal jugular vein by external jugular vein diameter. Anaesthesia. 1997 Mar;52(3):220-2. doi: 10.1111/j.1365-2044.1997.078-az0076.x. PMID: 9124661.