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Test Menu and History
To display the patient Test History and Test Menu while in a test, from the View drop down menu select Test Menu and History.
Acquire the data
Data is acquired by the system, 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
mA.
2.
Position the stimulator at the appropriate site.
3.
Click
Acquire
from the Function Keys. The system will begin recurrent stimulation.
4.
Increase the intensity on the stimulator probe until a small muscle twitch is observed. The intensity is shown on the
Toolbar and the status panel as a sliding bar.
5.
Click
Average
from the Function Keys. This will start data collection, averaging the potentials.
6.
When signal averaging begins, the first 10 sweeps are rejected automatically. The signal averager also excludes
sweeps that have high amplitude potentials (i.e., noise).
7.
After the first average is complete, the system begins a new trial (or replicates) to assess the reproducibility of the
potential. The data is saved. After completing the second trial, the acquisition and stimulation stops and the data is
saved automatically.
8.
Follow the same procedure to obtain a response for each required site.
Marking data
1.
Markers are placed automatically as the responses are acquired.
2.
To adjust the markers with the mouse, click the marker and drag it to its new location or use the Cursor Knob to
move the Red marker; push the Cursor Knob to advance to the next marker. Turn the knob to position the active
marker (Red) appropriately.
3.
To manually position latency or amplitude markers, select the appropriate marker from the Cursor Panel below the
waveform screen. From that panel, you can Clear, Clear All, Hide, Show, Fast Mark or place individual markers.
4.
To remove a marker, click the undesired marker on the waveform, it turns red. Then select Clear from the Cursor
Panel.
5.
The Up/down Cursor keys to activate the correct trace and repeat the previous steps.
