What is a peripheral nerve block?
A peripheral nerve block mean injecting a local anesthetic agent, such as bupivocaine, next to a mixed peripheral nerve. A mixed peripheral nerve is one that emerges after the lumbar or cervical plexus, and this nerve typically carries mostly motor fibers, and some sensory fibers. The peripheral nerve block typically lasts only one hour, and tells the doctor if the source of the leg or arm pain is occurring after the lumbar or brachial plexus.
