injuries poisoning
How To Do an Ulnar Nerve Block
Introduction
An ulnar nerve block anesthetizes both the volar and dorsal surfaces of the hypothenar half of the hand (from the little finger through the ulnar half of the ring finger). Ulnar nerve block can be done using anatomic landmarks or ultrasonographic guidance. Ultrasonographic guidance increases the likelihood of successful peripheral nerve blockade and reduces the risk of complications but requires equipment and trained personnel. (See also Local anesthesia for laceration treatment .) 