NCS/EMG settings from Q bank Flashcards
1
Q
The default sweep speed for EMG
A
10ms
2
Q
Default gain to assess a normal recruitment pattern
A
1mV
3
Q
Default gain for motor NCS
A
5mV
4
Q
Default setting for nerve conduction sweep speed
A
2ms
5
Q
Rise time increases when
A
rise time increases the further you are from the muscle being activated
6
Q
Onset latency represents
A
the conduction of the fastest fibers
7
Q
Lowering the high frequency filter
A
prolongs onset and peak latencies
amplitude decreases
“I was late because I was high”
8
Q
Raising the low frequency filter
A
shortens the peak latency
amp-low-tude
“I peaked early at a low point in my life”
changes wave form from triphasic to biphasic
9
Q
Sensory nerve conduction study filter settings
A
20-2000Hz
10
Q
EMG filter settings
A
20-10Khz
11
Q
Motor NCS filter settings
A
Two ranges:
10-10,000Hz
2-10,000Hz
