A client is being treated for acute low back pain. The nurse should report which of these clinical manifestations to the physician immediately?   1. Diffuse, aching sensation in the L4 to L5 area.  2....

A client is being treated for acute low back pain. The nurse should report which of these clinical manifestations to the physician immediately?

1. Diffuse, aching sensation in the L4 to L5 area.

 2. New onset of footdrop.

3. Pain in the lower back when the leg is lifted.

4. Pain in the lower back that radiates to the hip.