Table 2.
Initial nerve conduction study summary
|
|
|
Nerve
|
Stimulation
|
Recording site
|
Onset latency, ms
|
Peak latency, ms
|
Peak amplitude, mV
|
| Motor | |||||||
| Right | Axillary | Erb’s | Deltoid | 5.21 | 8.3 | 4.91 | |
| Suprascapular | Erb’s | Infraspinatus | 2.3 | 9.4 | 3.2 | ||
| Musculocutaneous | Erb’s | Biceps | 4.2 | 7.1 | 5.1 | ||
| Median | Wrist/elbow | APB | 4.0/7.4 | 6.8/10.6 | 6.7/6.6 | ||
| Radial | Elbow/axilla | EIP | 3.2/4.6 | 5.4/7.2 | 7.3/7.4 | ||
| Left | Axillary | Erb’s | Deltoid | 3.6 | 5.4 | 6.4 | |
| Suprascapular | Erb’s | Infraspinatus | 2.2 | 8.3 | 3.4 | ||
| Musculocutaneous | Erb’s | Biceps | 3.8 | 6.3 | 5.7 | ||
| Sensory | Peak amplitude (μV) | ||||||
| Right | LABC | Elbow | Forearm | 1.7 | 2.5 | 25.8 | |
| MABC | Elbow | Forearm | 2.0 | 2.7 | 15.1 | ||
| Median | Palm/wrist | 3rd digit | 1.0/3.2 | 1.8/4.11 | 68.1/45.4 | ||
| Left | Median | Palm/wrist | 3rd digit | 1.1/3.2 | 1.8/4.11 | 101/54.8 |
1
Abnormal findings. APB: Abductor pollicis brevis; EIP: Extensor indicis proprius; LABC: Lateral antebrachial cutaneous; MABC: Medial antebrachial cutaneous.