<prompt> You have noticed ape like thumb in a 30 years young man from bihar who is a known patient of leprosy? Which of the following test is not done to show the nerve involved in this condition?Card testPen testBenediction sign pointing index deformityOschner clasp sign  <response>: Common in leprosy-The involvement of the: median nerve at the wrist ulnar nerve at the elbow common peroneal nerve at the fibular head Here median nerve C5-T1 is involved all other tests done for median nerve palsy Card test is done for ulnar nerve A highproximal lesion of the median nerve manifests in the hand of benediction 