Table 4:

Electrophysiological studies of the sensory nerve function in the patient

Segment	Onset Latency (ms)	Norm Onset Latency (ms)	Amplitude (μv)	Normal Amplitude(μv)	Velocity	Normal Velocity (m/s)
Left Ulnar
ADM-Wrist	2.8	<3.1	4.1	>17	60.0	>50
Right Ulnar
ADM-Wrist	3.1	<3.1	1.5	>17	54.2	>50
Left Median
Wrist-APB		<3.5		>20	E.F.	>50
Right Median
Wrist-APB		<3.5		>20	E.F.	>50
Left Sural
Shank -Lateral malleolus		<4.4		>6.0	E.F.	>40
Right Sural
Shank -Lateral malleolus		<4.4		>6.0	E.F.	>40

ADM, abductor digiti minimi; APB, adductor pollicis brevis; E.F., Elicitation Failure