Table 1.

Nerve conduction studies before brainstem symptoms.

Nerve		DML	MCV	CMAP	F-wave
Median	Right	9 ms	34 m/s	3 mV	47 ms
	Left	10.8 ms	31 m/s	2 mV	51 ms
Ulnar	Right	8.2 ms	37 m/s	3.7 mV	51.4 ms
	Left	8.3 ms	35 m/s	3.2 mV	58 ms
Peroneal	Right	n.d.	n.d.	n.d.	n.d.
Tibial	Right	n.d	n.d	n.d	n.d

DML, distal motor latency; MCV, motor nerve conduction; CMAP, compact motor action potential.