Table 2 Nerve conduction studies
Motor NCS | ||||||||||||
Nerve – muscle | Stim-site | Latency (ms) | Distance (cm) | Amplitude (mv) | NCV (m/s) | F-LTN (ms) | Duration (ms) | |||||
R | L | R | L | R | L | R | L | R | L | |||
Median (APB) | WRIST | 4.7 | 5.2 | 7 | 3.3 | 3.9 | -- | -- | 36.8 | 27.9 | 8.6 | 7.9 |
Median (APB) | ELBOW | 10.4 | 10.4 | 22 | 2.1 | 2.5 | 39 | 42 | -- | -- | 10 | 7.9 |
Ulnar (ADQ) | WRIST | 4.2 | 5.2 | 7 | 3.6 | 4.6 | -- | -- | 31.7 | 31.6 | 9.3 | 8.8 |
Ulnar (ADQ) | D.ELBOW | 9.3 | 10 | 19 | 2.1 | 2.4 | 37 | 40 | -- | -- | 10.1 | 10 |
Ulnar (ADQ) | P.ELBOW | 11.8 | 12.4 | 10 | 1.8 | 2 | 40 | 42 | -- | -- | 9.7 | 9.5 |
Posterior Tibial (AH) | ANKLE | 6.8 | 7.6 | 8 | 2.2 | 2.2 | -- | -- | NR | 59.7 | 9.2 | 5.1 |
Posterior tibial (AH) | KNEE | 18.6 | 18.4 | 31 | 0.8 | 0.4 | 26 | 29 | -- | -- | 12.5 | 6.7 |
Peroneal (EDB) | ANKLE | 8.2 | NR | 7 | 2.2 | -- | -- | -- | -- | -- | 10.7 | NR |
Peroneal (EDB) | D.KNEE | 19.2 | -- | 31 | 0.5 | -- | 28 | -- | -- | -- | 11.5 | -- |
Peroneal (EDB) | P.KNEE | 22.5 | -- | 9 | 0.4 | -- | 28 | -- | -- | -- | 11.9 | -- |
Facial nerve | MASTOID | 6.3 | 6.2 | 7 | 2.6 | 3.2 | Â | Â | Â | Â | Â | Â |
H. Reflex | POP.FOSSA | NR | NR | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Sensory NCS | ||||||||||||
Nerve | Recording site | Stimulation site | Latency (ms) | Distance (cm) | Amplitude (uV) | NCV (m/s) | ||||||
R | L | R | L | R | L | |||||||
Median | F2 | WRIST | 4.1 | 3.9 | 14 | 8.90 | 8.00 | 34 | 36 | |||
Ulnar | F5 | WRIST | 3.3 | 3.9 | 14 | 10.50 | 7.50 | 42 | 36 | |||
Radial | SNUFF.BOX | FOREARM | 2.8 | 2.3 | 10 | 15.40 | 15.00 | 36 | 43 | |||
Sural | ANKLE | CALF | 3.9 | 3.9 | 14 | 12.20 | 10.80 | 36 | 36 | |||