Figure 16.2 Butterfly taping of an auricular vein catheter, which may be sutured/stapled into place, or the ear may be bandaged for catheter security.

Auricular Artery Catheterization

The auricular arteries are located on the dorsum of the ear and are most easily palpated on the upper one-third of the ear. Using digital palpation, each vessel on the ear is palpated for a pulse and the artery identified. Good head restraint is used and an over-the-needle catheter is placed and taped into place. A pulsing flow of bright red blood confirms arterial placement. Hematoma formation is common from arterial catheterization and after a failed attempt at catheterization or after removal of a catheter, firm pressure should be applied to the insertion site for several minutes.

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