MCQ – 88977

Question

A 36-year-old woman comes to the physician because of a 2-month history of progressively worsening lower back pain and weakness in the lower extremities. The pain is worse with movement and improves with lying down on a flat surface. She was diagnosed with pulmonary tuberculosis 6 months ago and is currently taking isoniazid and rifampin. Physical examination shows sensory loss over the lateral aspect of the mid-thigh, patella, and medial aspect of the right lower leg. Strength is 2/5 with right-sided dorsiflexion and the patellar reflex is absent. An x-ray of the spine shows a paravertebral opacity with anterior wedging of the vertebral body. Which of the following nerve roots is most likely to be affected in this patient?

A. S1

B.

S2

C.

L3

D.

L4

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