Ulnar Nerve Block Technique Discussion

The ulnar nerve block technique involves locating the ulnar artery and finding the ulnar nerve on its ulnar side. As you move towards the wrist, the artery and nerve stay close together, causing some concern. However, by coming back just past the midpoint of the forearm, the nerve separates from the artery, providing a safer distance for the needle insertion. The technique involves starting the scan at the wrist, identifying the ulnar artery as a landmark, then locating the ulnar nerve on its side. Moving proximally towards the mid part of the forearm, the artery diverges from the nerve, allowing for a clearer view and safer targeting of the ulnar nerve for the block.