Question

how can you differentiate c7 radiculopathy from a radial neuropathy?
triceps muscle test
triceps reflex
wrist flexor muscle test
finger extensor muscle test

Explanation:

C7 radiculopathy affects the C7 nerve root, which innervates the triceps, so the triceps reflex and triceps muscle function are impaired. Radial neuropathy (e.g., at the spiral groove) typically spare the triceps and triceps reflex, as the radial nerve innervates the triceps before reaching the spiral groove. Wrist flexors are innervated by the median/ulnar nerves, and finger extensors are innervated by the radial nerve, so these do not distinguish the two conditions. The triceps reflex is a key differentiator: it is diminished in C7 radiculopathy but preserved in most radial neuropathies.

Answer:

B. Triceps Reflex