<prompt> Most common nerve used for nerve conduction study in H reflex ?Median nerveUlnar nerveTibial nervePeroneal nerve  <response>: Ans.is c i.e., Tibial nerve It is recorded over the soleus or gastrocnemius muscles. It is used mos The H reflex is basically an electrophysiologically recorded Achilles tendon stretch reflex. o It is performed by stimulating the tibial nerve in popliteal fossa. t commonly to evaluate Si radiculopathy or to distinguish it from an L5 radiculopathy. 