NBCE Neurology and Neurological Assessment 2

Question 1

The biceps brachii reflex tests which nerve roots?

Accepted Answer

C5-C6

Answer

The biceps reflex is mediated by C5-C6 nerve roots via the musculocutaneous nerve, making it useful for diagnosing mid-cervical radiculopathy.

Question 2

A positive Babinski sign (upgoing plantar response) in an adult indicates:

Accepted Answer

Upper motor neuron lesion involving the corticospinal tract

Answer

An upgoing plantar response (Babinski sign) in adults signifies upper motor neuron pathology affecting the corticospinal tract, such as spinal cord compression or stroke.

Question 3

Phalen's test is performed by:

Accepted Answer

Holding both wrists in sustained flexion for 60 seconds

Answer

Phalen's test involves sustained bilateral wrist flexion for 60 seconds; reproduction of median nerve paresthesias constitutes a positive result for carpal tunnel syndrome.

Question 4

The triceps reflex is primarily mediated by which nerve root?

Accepted Answer

C7

Answer

The triceps reflex is mediated by C7 via the radial nerve, and diminished response suggests C7 nerve root compression.

Question 5

The Romberg test is primarily used to assess:

Accepted Answer

Proprioception and dorsal column (posterior column) integrity

Answer

The Romberg test assesses posterior column integrity; increased sway or falls with eyes closed (positive Romberg) indicates impaired proprioception rather than cerebellar dysfunction.

(NBCE) National Board of Chiropractic Examiners Practice Test

(NBCE) National Board of Chiropractic Examiners Practice Test

NBCE Neurology and Neurological Assessment 2