During the elbow flexion test, what symptom suggests ulnar nerve compression?

The symptom that suggests ulnar nerve compression during the elbow flexion test is paresthesia along the medial forearm and hand. This is due to the anatomical pathway of the ulnar nerve, which runs along the inside of the elbow and supplies sensation to the skin of the medial aspect of the forearm and the ring and little fingers. During the elbow flexion test, if the ulnar nerve is compressed or irritated, it can lead to tingling, numbness, or a "pins and needles" sensation in these areas.

This symptom is significant because it directly points to potential dysfunction of the ulnar nerve, indicating that further evaluation and treatment may be necessary. Recognizing paresthesia as a clear indicator of ulnar nerve involvement is essential for making an accurate diagnosis and deciding on the next steps in management and intervention.