Nerve stimulator

Can be used on

• Wrist - ulnar nerve
  --> thumb adduction
  * 40mA current used
• Fibula - common peroneal nerve
  --> dorsiflexion of the foot
• Ankle - posterior tibial nerve
  --> plantar flexion of the big toe
• Temporal branch of facial nerve
  --> frontalis muscle

Train of four

4 stimuli @ 2Hz every 12 seconds

Duration <0.2ms

Ratio of amplitude of 4th to 1st estimate the degree of block.

Tetanus - 50Hz