Exam

Two Point Discrimination

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Two Point Discrimination

Indications

Neuropathy (Carpal Tunnel Syndrome)

Efficacy
Carpal Tunnel Syndrome (Median Nerve)

Test Sensitivity: 33%
Test Specificity: 100%

Technique

Test patient's ability to distinguish 2 points
Test on the pulp of the digits at decreasing distance

Interpretation

Normal 2 point discrimination: 4-5 mm
Increased 2 point discrimination suggests Neuropathy