Table 1.
Motor nerve conduction studies.
| NERVE (REC. SITE) | STIMULUS SITE | DISTANCE (cm) | LATENCY (ms) |
AMPLITUDE (mV) |
NCV (m/s) |
F.LAT. (ms) |
||||
|---|---|---|---|---|---|---|---|---|---|---|
| R | L | R | L | R | L | R | L | |||
| MEDIAN(APB) | Wrist | 5.0 | NR | 2.9 | NR | 5.7 | NR | NR | ||
| Elbow | 24.0 | NR | 8.4 | NR | 0.1 | NR | 43.6 | |||
| ULNAR(ADQ) | Wrist | - | NR | NR | NR | NR | NR | NR | ||
| Distal to Elbow | - | NR | NR | NR | NR | NR | NR | |||
| Proximal to elbow | - | NR | NR | NR | NR | |||||
| RADIAL(EIP) | EDC | 8.0 | 3.0 | 2.5 | 2.7 | 0.4 | ||||
| TRICEP | 7.0 | 4.5 | 5.5 | 2.3 | 0.0 | 53.1 | 36.0 | |||
| MUSCULO -CUTANEOUS | AXILLA | 16.0 | 4.0 | 4.1 | 0.2 | 1.0 | 40.0 | 84.2 | - | - |
| ERB’S | ||||||||||
Nerve conduction findings of motor nerves of upper limbs showing asymmetric low motor amplitudes (non-recordable or very low). Left sided nerves are worse than right side. There is also evidence of focal conduction block in left median nerve.
Abbreviations: NR: Non recordable, APB: Abductor pollicis brevis, ADQ: Abductor digiti quanti, EIP: Extensor indicis propius, EDC: Extensor digitorum communis.