Results of the nerve conduction study
Nerve | Values | |
---|---|---|
Normal | Patient’s* | |
*Abnormal results in italics. | ||
CV, conduction velocity; MAP, motor action potential; NR, no response; SNAP, sensory nerve action potential. | ||
Right median nerve | ||
Motor latency, wrist | <4.2 ms | 6.5 |
Motor CV, forearm | >45 m/s | 47.8 |
MAP amplitude | >4 mV | 6.2 |
F-wave latency | <28 ms | 33.6 |
Sensory CV, wrist | >45 m/s | 28.8 |
SNAP amplitude | >19 µv | 14 |
Right ulnar nerve | ||
Motor latency, wrist | <3.5 ms | 7.7 |
Motor CV, forearm | >49 m/s | 59.2 |
Motor CV, elbow | >45 mV | 57.1 |
MAP amplitude | >3 ms | 0.23 |
F-wave latency | <28 ms | NR |
Sensory CV, wrist | >44 m/s | NR |
SNAP amplitude | >18 µv | NR |
Right radial nerve | ||
Sensory CV, wrist | >45 m/s | 44.8 |
SNAP amplitude | >12 µv | 5 |
Right suprascapular nerve | ||
Motor latency, shoulder | <3.7 ms | NR |
MAP amplitude | >3 mv | NR |
Right peroneal nerve | ||
Motor latency, ankle | <5.5 ms | 6.9 |
Motor CV, leg | >40 m/s | 39.4 |
Motor CV, knee | >40 mv | 34.5 |
MAP amplitude | >2.5 ms | 8.1 |
F-wave latency | <52 ms | 62.5 |
Sensory CV, wrist | >45 m/s | 27.0 |
SNAP amplitude | >8 µv | 4 |
Right tibial neve | ||
Motor latency, ankle | <6.0 m/s | 5 |
Motor CV, leg | >41 mV | 41 |
MAP amplitude | >2.9 ms | 9 |
F-wave latency | <55 ms | 58.8 |
Right sural nerve | ||
Sensory CV, leg | >40 m/s | 37.8 |
SNAP amplitude | >12 µv | 15 |