This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Tinel's sign is: 
Select and explain. 
A. Loss of sensation, B. Loss of 2 point discrimination, C. Percussion produces tingling sensation, D. Not associated with carpel tunnel syndrome
C: Percussion produces tingling sensation
Answer: C: Percussion produces tingling sensation 
Explanation: Procedure

Patient is seated, elbow in flexion.
Evaluator grasps wrist and taps the ulnar notch with reflex hammer.

Positive Test

Athlete complains of tingling sensation along forearm hand and fingers.
Indicates ulnar nerve compromise.