Table 3:
Electrophysiological studies of the motor nerve function in the patient
| Segment | Onset Latency (ms) | Norm Onset Latency (ms) | Amplitude (mv) | Normal Amplitude (mv) | Velocity | Normal Velocity (m/s) |
|---|---|---|---|---|---|---|
| Left Ulnar | ||||||
| ADM-Wrist | 2.3 | <3.3 | 1.2 | >6.0 | - | |
| Wrist-Elbow | 6.5 | 1.0 | 52.4 | >49 | ||
| Elbow-Armpit | 11.2 | 1.0 | 60.6 | >49 | ||
| Right Ulnar | ||||||
| ADM-Wrist | 2.5 | <3.3 | 1.0 | >6.0 | - | |
| Wrist-Elbow | 6.2 | 1.0 | 54.1 | >49 | ||
| Elbow-Armpit | 11.8 | 1.0 | 52.7 | >49 | ||
| Left Median | ||||||
| Wrist-APB | 3.0 | <4.4 | 2.6 | >4.0 | - | |
| Wrist-Elbow | 7.3 | 2.1 | 57.0 | >49 | ||
| Elbow-Armpit | 11.4 | 2.1 | 61.0 | >49 | ||
| Right Median | ||||||
| Wrist-APB | 2.9 | <4.4 | 2.6 | >4.0 | - | |
| Wrist-Elbow | 7.8 | 2.2 | 53.1 | >49 | ||
| Elbow-Armpit | 11.8 | 2.3 | 60.0 | >49 | ||
| Left Tibial | ||||||
| Ankle-AH | 5.8 | <6.3 | 0.2 | >4.0 | E.F. | >41 |
| Popliteal fossa-Ankle | 14.2 | <5.8 | 0.2 | >3.0 | 45.2 | >41 |
| Right Tibial | ||||||
| Ankle-AH | <6.3 | >4.0 | E.F. | >41 | ||
| Left Common Peroneal | ||||||
| EDB-ankle | <6.5 | >2.0 | E.F. | >44 | ||
| Right Common Peroneal | ||||||
| EDB-ankle | 4.1 | <6.5 | 0.6 | >2.0 | - | >44 |
| Down knee-ankle | 12.4 | <6.6 | 0.5 | >3.0 | 41.0 | >44 |
| Up-down knee | 14.8 | <6.6 | 0.5 | >3.0 | 45.8 | >44 |
ADM, abductor digiti minimi; APB, adductor pollicis brevis; AH, abductor hallucis; EDB, extensor digitorum brevis; -, no testing; E.F., Elicitation Failure