natus UltraPro S100, User Manual, Page: 64 / 88

UltraPro S100
4-8
September 13, 2018
Sensory NCS
electrode placement
1. Surface disk or ring electrodes are placed over the skin where the tested nerve is
located superficially.
2. The nerve is stimulated at sites where it is located superficially.
The cathode of the stimulator is oriented towards the active recording
electrode.
Acquire the data
Data is acquired by the instrument, displayed on-screen, and marked and saved
automatically. The waveforms along with the measured values are then
transferred to a Report.
1. Set the stimulus intensity to 0 .
2. Position the stimulator at the appropriate site.
3. Press the Single Stimulus key on the Control Panel (or footswitch
or the Acquire button above the wheel on the stimulator probe) to stimulate and
acquire responses.
4. Use the Stimulus Intensity control knob or the Intensity wheel on the
stimulator probe to gradually increase the intensity of the electrical
stimulus until the response is maximal.
5. If using continuous stimulation, press the Repetitive key on the Control
Panel or press and hold briefly the Acquire button on the stimulator probe.
When an acceptable response is observed, press either button again to stop
stimulation.
6. To average, press the Average function key on the Control Panel. The
averager is then enabled. Press the Repetitive key on the Control Panel to
acquire the defined number of sweeps.
7. To advance to the next stimulus site, press the Next Site down arrow from
the Navigation keys or the A button on the probe.
8. Follow the same procedure to obtain a response for each required site.