Question

With the straight-leg-raising test, the NP is evaluating tension on which of the following nerve roots?

A. L1 and L2
B. L3 and L4
C. L5 and S1
D. S2 and S3

Answer 1

The straight-leg-raising test primarily evaluates tension on the L5 and S1 nerve roots, used to assess for herniated discs or nerve root irritation.

Step-by-step explanation:

The straight-leg-raising test, also known as Lasegue's test, is used to evaluate tension on the sciatic nerve and to assess for the presence of a herniated disc or nerve root irritation. When a healthcare provider performs this test, they are primarily evaluating tension on the L5 and S1 nerve roots. This test involves raising the patient’s leg while keeping the knee straight to stretch the sciatic nerve and the nerve roots that form it. Pain during this maneuver suggests inflammation or compression of these nerve roots, which is often associated with a herniated lumbar disc.