Back Pain Back Pain Diagnosis and Imaging 3

Question 1

Which reflex is associated with the L5 nerve root?

Accepted Answer

No consistent deep tendon reflex

Answer

Patellar reflex

Answer

Achilles reflex

Answer

Biceps reflex

Question 2

A bone scan (scintigraphy) is particularly useful for detecting which back pain cause?

Accepted Answer

Metastatic bone disease or stress fractures

Answer

Disc herniation

Answer

Muscle strain

Answer

Facet arthropathy

Question 3

Which clinical feature distinguishes referred pain from radicular (nerve root) pain in the back?

Accepted Answer

Radicular pain is dermatomal and often includes neurological signs; referred pain is diffuse

Answer

Referred pain follows a dermatomal pattern; radicular does not

Answer

Referred pain is always worse at night

Answer

Radicular pain is always bilateral

Question 4

Which provocative test reproduces lumbar radiculopathy symptoms by applying axial compression to the spine?

Accepted Answer

Kemp's test (quadrant test)

Answer

Spurling's test

Answer

Thomas test

Answer

Lasègue test

Question 5

CT myelography is preferred over standard MRI in which clinical scenario?

Accepted Answer

Patients with MRI-incompatible implants needing detailed neural evaluation

Answer

First-line evaluation of disc herniation

Answer

Routine screening in young adults

Answer

Diagnosing sacroiliac joint inflammation

Question 6

Which finding on physical examination is most specific for lumbar disc herniation at L5–S1?

Accepted Answer

Decreased Achilles reflex with S1 dermatomal numbness

Answer

Positive FABER test

Answer

Positive Thomas test

Answer

Decreased patellar reflex