Sensory nerve conduction studies | Amp (µV) | CV (m/s) | |||
Right radial—thumb—forearm | 12.6 | 44.9 | |||
Left radial—thumb—forearm | 6.3 | 40.7 | |||
Right median—digit II—wrist | 7.3 | 42.9 | |||
Right sural—lateral malleolus—calf | Not recordable | Not recordable | |||
Left superficial personal—foot—lateral leg | Not recordable | Not recordable | |||
Motor nerve conduction studies | DML (ms) | CV (m/s) | CMAP (mV) | Minimal F-wave latency (ms) | |
Right median—APB | |||||
Wrist | 3.75 | 10.3 | |||
Elbow | 11 | 36.6 | 8 | ||
Axilla | 15.45 | 31.5 | 9.3 | ||
Right common peroneal—EDB | Not recordable | ||||
Right tibial—AH | Not recordable | ||||
Left tibial—AH | Not recordable | ||||
F- wave | Mean F-wave latency (ms) | ||||
Right median—APB | 52.49 | ||||
Right ulnar—ADM | 49.56 | ||||
Left ulnar—ADM | 54.86 | ||||
Left median—APB | 52.96 | ||||
Electromyography | Fibrillations | Duration | Amplitude | Polyphasic | Recruitment |
Right biceps | 0 | 0 | N | N | N |
Right FDIO | 0 | 0 | N | N | N |
Right gastrocnemius | 1 | 0 | Increased | Increased | Reduced, large units recruiting early |
R vastus | 2 | 0 | Increased | Increased | Not assessable |
ADM, adductor digiti minimi; AH, adductor hallucis; Amp, amplitude; APB, abductor pollicis brevis; CMAP, compound muscle action potential; CV, conduction velocity; DML, distal motor latency; EDB, extensor digitorum brevis; FDIO, first dorsal interosseous; N, normal.