All the following are used for clinical confirmation of carpal tunnel syndrome (CTS) except
|A||Thumb pressure on the lateral epicondyle|
|C||Application of BP cuff and inflation till there is venous distension.|
|D||Direct pressure on the median nerve.|
Thumb pressure on the lateral epicondyle
a. Paresthesia over the sensory distribution of the median nerve is the most frequent symptom of CTS.
b. This symptomatology is enhanced by forced palmar flexion of wrist for 60 seconds, this is called Phalen test.
c. Application of a BP cuff to the upper arm and inflating to sufficient pressure to cause venous distension and also direct compressions of the median nerve with thumbs as described by Duran are other clinical tests which exacerbate symptomatology in CTS.