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Table 2 Motor nerve conduction study

From: Guillain-Barré syndrome AMSAN variant in a 90-year-old woman after COVID-19: a case report

Nerve- position

Distal latency (ms)

CMAP distal amplitude (mV)

CMAP proximal amplitude (mV)

Velocity (m/s)

L Ulnar

 wrist

2.97

5.3

4.3

 

 forearm

7.08

5.4

4.3

51

R Peroneal

 ankle

3.02

0.1

0.2

 

 leg

9.43

0.2

0.1

46.8

L Tibial

 ankle

3.23

6.9

4.8

 

 knee

11.56

4.3

2.9

42

  1. Abbreviations: L left, R right, SAP sensory action potential, CMAP compound motor action potential, n.e not elicitable