NPTE Spine & Low Back Practice Exam
2026–2027 | 100 Advanced Scenario-
Based Questions with Answers &
Detailed Rationales | Lumbar Spine,
Low Back Pain, Orthopedic &
Musculoskeletal Physical Therapy Exam
Prep | NPTE Study Guide & Practice Test
1. A 48-year-old patient reports low back pain radiating into the lateral leg
and dorsum of the foot. Examination reveals weakness of ankle dorsiflexion
and great-toe extension, with diminished sensation over the dorsum of the
foot. Which nerve root is most likely involved?
A. L3
B. L4
C. L5
D. S1
,Answer: L5 nerve root
Rationale: L5 radiculopathy commonly produces weakness of ankle dorsiflexion
and great-toe extension, with sensory changes over the dorsum of the foot.
2. A patient with acute low back pain demonstrates pain with lumbar flexion,
sitting, and coughing. Repeated lumbar extension decreases the patient's
distal leg symptoms and centralizes pain toward the lumbar spine. Which
intervention principle is most appropriate?
A. Emphasize repeated lumbar flexion
B. Encourage sustained sitting
C. Use repeated lumbar extension movements within symptom tolerance
D. Avoid all active lumbar movement
Answer: Use repeated lumbar extension movements within symptom tolerance
Rationale: Centralization with repeated extension indicates an extension
directional preference. Repeated movements that centralize symptoms may be
incorporated into treatment.
3. A 62-year-old patient reports bilateral buttock and posterior thigh pain
while standing and walking. Symptoms improve when sitting or leaning
forward over a shopping cart. Which condition is most consistent with this
presentation?
A. Lumbar spinal stenosis
B. Sacroiliac joint sprain
C. Piriformis syndrome
D. Acute discogenic radiculopathy
Answer: Lumbar spinal stenosis
Rationale: Neurogenic claudication from lumbar spinal stenosis is typically
aggravated by standing and extension and relieved by sitting or flexion.
4. A patient with suspected lumbar radiculopathy undergoes a straight-leg
raise. Symptoms are reproduced at 40° of hip flexion and increase when the
, examiner dorsiflexes the ankle. Which structure is most directly being
stressed?
A. Femoral nerve
B. Sciatic nerve and lumbosacral nerve roots
C. Obturator nerve
D. Superior gluteal nerve
Answer: Sciatic nerve and lumbosacral nerve roots
Rationale: The straight-leg raise tensions the sciatic nerve and associated
lumbosacral nerve roots, particularly L4-S1.
5. A patient with low back pain has a positive prone instability test. Pain
occurs during active lumbar extension while the feet remain on the floor
but decreases when the patient lifts the legs and activates the trunk
musculature. What does this finding most strongly suggest?
A. Lumbar segmental instability
B. Hip joint pathology
C. Thoracic radiculopathy
D. Sacroiliac ankylosis
Answer: Lumbar segmental instability
Rationale: Reduction of pain when the patient actively stabilizes the lumbar
region supports the presence of a stabilization-related impairment.
6. A patient presents with severe low back pain, bilateral leg weakness, saddle
anesthesia, and new urinary retention. What is the most appropriate
action?
A. Begin lumbar stabilization
B. Perform repeated lumbar flexion
C. Refer immediately for emergency medical evaluation
D. Apply lumbar traction
Answer: Refer immediately for emergency medical evaluation
, Rationale: Saddle anesthesia, bilateral neurologic deficits, and urinary retention
are red flags for possible cauda equina syndrome and require urgent evaluation.
7. A patient with lumbar radiculopathy demonstrates weakness during
repeated heel walking but normal toe walking. Which myotome is most
likely impaired?
A. L2
B. L3
C. L5
D. S2
Answer: L5
Rationale: Heel walking emphasizes ankle dorsiflexion, which is strongly
associated with the L5 myotome.
8. A patient with chronic low back pain has fear of movement,
catastrophizing, poor sleep, and avoidance of physical activity despite no
evidence of serious pathology. Which approach is most appropriate?
A. Prolonged bed rest
B. Education, graded activity, and addressing psychosocial barriers
C. Avoidance of painful movement indefinitely
D. Passive modalities as the primary treatment
Answer: Education, graded activity, and addressing psychosocial barriers
Rationale: Chronic low back pain is influenced by biological, psychological, and
social factors. Active rehabilitation should address fear avoidance and
functional limitations.
9. A patient develops low back pain after repeatedly lifting objects. Pain is
worse with flexion and prolonged sitting. Which finding would most
strongly support lumbar disc involvement?
A. Pain centralized by repeated flexion
B. Radicular symptoms reproduced with neural tension testing