Table 1 Nerve conduction studies

MOTOR:

Median nerve

 DML (wrist to APB)

< 4.2

3.6

5.4

3.4

 CMAP (mV)

≥ 3.9

9.2

4.1

8.6

 CV (m/sec)

> 47

27

27

33

Ulnar nerve

 DML (msec; wrist to ADM)

< 3.4

2.6

3.1

3.6

2.2

 CMAP (mV)

≥ 5.9

13.1

12.7

4.6

7.7

 CV (m/sec)

> 47

25

27

23

24

Tibial nerve

 DML (msec; ankle to AH)

< 6.0

5.3

6.2

10.5

4.5

 CMAP (mV)

≥ 3.9

3.3

3.6

0.5

6.6

 CV (m/sec)

> 39

21

22

15

26

Peroneal nerve

 DML (msec; ankle to EDB)

< 6.0

5.0

8.5

4.5

 CMAP (mV)

≥ 2.4

1.7

0.8

2.9

 CV (m/sec)

> 39

22

17

43

SENSORY:

Median nerve

 PL (msec; wrist to digit-II)

< 3.2

2.5

2.8

3.4

2.1

 SNAP (μV)

≥ 14

67

69

15

36

 CV (m/sec)

46

39

40

52

Ulnar nerve

 PL (msec; wrist to digit-V)

< 3.3

2.0

2.2

3.1

2.2

 SNAP (μV)

≥ 9

43

64

26

44

 CV (m/sec)

47

50

35

43

Sural nerve

 PL (msec; calf to lat mall)

< 4.2

3.8

3.0

NR

2.7

 SNAP (μV)

≥ 5

11

17

NR

9.5

 CV (m/sec)

42

40

NR

35