Peripheral Nerves C&P Exam & DBQ: What VA Examiners Look For

The VA evaluates peripheral nerve conditions, radiculopathy, and neuropathy using the official Peripheral Nerves Conditions Disability Benefits Questionnaire. Current VA examination standards identify this form by its official title rather than obsolete administrative form numbers. The questionnaire standardizes clinical testing across both upper and lower extremities, documenting sensory loss, motor weakness, muscle atrophy, trophic changes, and functional impact on daily occupational tasks.

During the examination, the examiner maps sensory deficits along anatomical dermatomes. For cervical radiculopathy and upper extremity nerves, testing evaluates the C5 through T1 nerve roots, distinguishing median, ulnar, and radial nerve distributions. For lumbar radiculopathy and lower extremity nerves, testing follows the L2 through S1 nerve pathways. The examiner tests response to light touch and sharp pinprick sensation, recording whether the deficit represents normal sensation, hypesthesia (decreased sensation), hyperesthesia (increased sensitivity), or complete anesthesia.

Motor function is evaluated using the standardized Medical Research Council scale from 0/5 to 5/5. Normal active movement against full resistance is graded 5/5, while 4/5 indicates movement against moderate resistance, 3/5 represents movement against gravity only, 2/5 indicates movement with gravity eliminated, 1/5 denotes trace muscle flicker, and 0/5 indicates complete paralysis. In addition, the examiner uses a tape measure to perform circumferential measurements of bilateral forearms, arms, thighs, and calves to detect muscle wasting and disuse atrophy caused by denervation.

Deep tendon reflex testing provides objective verification of nerve root integrity. Examiners test the biceps (C5-C6), brachioradialis (C6), triceps (C7), patellar (L3-L4), and Achilles (S1) reflexes, grading responses as absent (0), hypoactive (1+), normal (2+), or hyperactive (3+). Examiners also perform provocative maneuvers: the Straight Leg Raise (SLR) test and seated slump test for sciatic nerve irritation, and Spurling's test for cervical nerve root compression.

While not required for every claim, electromyography and nerve conduction studies represent gold-standard objective evidence for peripheral nerve impairment. An EMG/NCS objectively differentiates radiculopathy (nerve root compression at the spine) from peripheral neuropathy (distal axonal or demyelinating disease) or focal nerve entrapment like carpal tunnel syndrome. Veterans who have undergone recent EMG testing should ensure full electrodiagnostic reports and wave velocity tracings are included in their VA claims file.