Sural NCS

Sural NCS

  1. Active recording electrode – immediately behind the lateral malleolus
  2. Reference Electrode – distal to recording electrode
  3. Stimulating electrode –  14 cm from the recording electrode on the posterolateral portion of the calf (along the lateral border of the gastrocnemius and soleus tendons)
  4. Ground electrode – placed in between the active and stimulating electrodes

Measure the following parameters

  • Latency       ___ ms
  • Amplitude  ___µV
  • Distance      ___ cm (i.e., 14cm)

Velocity = Distance/Latency (cm/ms)

Sural Nerve NCS2

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