Table 2.
Sensory NCS | ||||
Nerve /sites | Rec. site | Onset latency (ms) | PP amplitude (µV) | Velocity (m/s) |
R Median, ulnar—median ulnar orthodromic | ||||
Median Dig II | Wrist | NR | NR | NR |
Ulnar Dig V | Wrist | NR | NR | NR |
L Median, ulnar—median ulnar orthodromic | ||||
Median Dig III | Wrist | NR | NR | NR |
Ulnar Dig V | Wrist | NR | NR | NR |
R Radial—anatomical snuff box (forearm) | ||||
Forearm | Wrist | NR | NR | NR |
L Radial—anatomical snuff box (forearm) | ||||
Forearm | Wrist | NR | NR | NR |
L Sural, superficial peroneal | ||||
Sural calf | Ankle | NR | NR | NR |
Superficial peroneal calf | Ankle | NR | NR | NR |
Motor NCS | |||||||
Nerve /sites | Muscle | Latency (ms) | Amplitude (mV) | PP amplitude (mV) | Relative amplitude (%) | Duration (ms) | Velocity (m/s) |
L Median—APB | |||||||
Wrist | APB | NR | NR | NR | NR | NR | |
Elbow | APB | NR | NR | NR | NR | NR | |
R Median—APB | |||||||
Wrist | APB | NR | NR | NR | NR | NR | |
L Ulnar—ADM | |||||||
Wrist | ADM | NR | NR | NR | NR | NR | |
R Ulnar—ADM | |||||||
Wrist | ADM | NR | NR | NR | NR | NR | |
R Peroneal—EDB | |||||||
Ankle | EDB | 5.68 | 1.2 | 1.6 | 100 | 24.9 | |
Fib head | EDB | 12.81 | 0.9 | 1.2 | 78.8 | 24.53 | 42 |
Pop fossa | EDB | 14.53 | 0.6 | 0.9 | 53.1 | 24.64 | 40.7 |
R Tibial—AH | |||||||
Ankle | AH | 4.17 | 5.2 | 7.7 | 100 | 22.24 |
ADM, abductor digiti minimi; AH, abductor hallucis; APB, abductor pollicis brevis; EDB, extensor digitorum brevis; NCS, nerve conduction studies.