Laboratory testing in peripheral nerve disorders

The goal of this review is to guide the physician in ordering laboratory tests for a patient with a neuropathic disorder after the patient has been placed in one of the eleven neuropathic patterns (See this issue: Barohn et al.Pattern Recognition to Neuropathy and Neuronopathy, Pages 4-27, 2023).Once the patient has been placed into one of these eleven patterns, the physician is well on their way to a correct diagnosis for the neuropathic disorder that will ultimately lead to a targeted approach, including treatment.The neuropathic pattern will determine what laboratory tests should be ordered to confirm the diagnosis.