Among the clinical provocative physical examination tests utilized for carpal tunnel syndrome, which of the following is statistically proven to have the highest sensitivity and specificity for diagnosing median nerve compression at the wrist?

Explanation:
The correct option is b. Durkan's test involves the examiner applying direct, firm manual pressure directly over the carpal tunnel for 30 seconds. Studies consistently demonstrate that this direct mechanical compression yields the highest sensitivity (approx. 87%) and specificity (90%) for reproducing the numbness, tingling, and pain associated with median nerve entrapment, outperforming both Phalen's maneuver (wrist flexion) and Tinel's sign (percussion). Reference: Durkan JA. A new diagnostic test for carpal tunnel syndrome. J Bone Joint Surg Am. Core orthopaedic mcq.