Table 1.

Results of electrophysiologic studies

Motor conduction velocityMotor distal latencyCompound muscle action potentialAction potential durationSensory conduction velocitySNAP
SNAP = sensory nerve action potential.
Twenty days after onset
Right median nerveAxilla-elbow 13.8 m/s8.7 ms/7 cmWrist 1.8 mVWrist 45 msIII finger-wrist 30.2 m/s28.8 μV
Elbow-wrist 18.9 m/sElbow 1.4 mVElbow 65 ms
Axilla 1.1 mVAxilla 80 ms
Right deep peroneus nerveHead of the fibula-ankle 13.9 m/s8.9 ms/9 cmHead of the fibula 1.13 mVHead of the fibula 78 ms
Ankle 2.2 mVAnkle 20 ms
Seven months after onset
Right median nerveAxilla-elbow 20.9 m/s5.72 ms/ 7 cmWrist 8.57 mVWrist 18.8 msIII finger-wrist 37.7 m/s6.6 μV
Elbow-wrist 16.9 m/sElbow 2.25 mVElbow 28.1 ms
Axilla 3.30 mVAxilla 25.8 ms
Right deep peroneus nerveHead of the fibula-ankle 26.2 m/s5.40 ms/ 8 cmHead of the fibula 2.6 mVNot determined
Ankle 3.34 mV