7. Peripheral Nerves

Question 1

What type of sensation affected in ALS?

Answer 1

None

Question 2

Foot drop from radiculopathy vs peroneal nerve palsy?

Answer 2

In pure peroneal neuropathy, foot inversion is intact (tibialis posterior/anterior); and internal rotation of flexed hip (gluteus medius)

Question 3

Anterior interosseous nerve entrapment

Answer 3

Pain in proximal forearm that increases with exercise and decrease with rest

Question 4

T1 radiculopathy?

Answer 4

Irritation of medial upper arm and Horner syndrome (Pancoast tumor)

Question 5

Standard lab test for peripheral neuropathy workup

Answer 5

Thyroid, Rheum, Vitamin B12/Folate, HbA1C, ESR, RPR, heavy metals, immunoelectrophoresis of serum protein

Question 6

Froment sign

Answer 6

Grasping paper- paralysis of adductor pollicis