natus Nicolet Viking EDX, User Manual

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January 30, 2020 5-9
Performing an Exam
Activating markers
To activate a marker, use either of the following methods:
Superimposing traces
In a single nerve study, superimposed traces are displayed in the center of the
screen. In a two-nerve study, waveforms recorded from Nerve A are displayed on
the upper half of the screen; waveforms recorded from Nerve B are displayed on
the lower half.
1. Click on the marker you want to activate. It will turn Red.
1. You can activate markers using the Marker hardkeys on the
Viking EDX control panel.
a. Press Marker 1 (advance) to activate the first latency or
amplitude marker on a trace. Press this key again to
activate the first latency or amplitude marker on the next
trace.
b. Press Marker 2 (advance) to activate the second latency
or amplitude marker on a trace. Press this key again to
activate the second latency or amplitude marker on the
next trace.
c. Press Latency/Amplitude to switch between the latency
and amplitude markers.
1. Use any of the following methods to superimpose traces:
a. Click on the Superimpose button on the Toolbar.
Click Superimpose again to return the traces to their
original positions.
b. Press the Superimpose button on the Control Panel to
overlay traces containing data. Press Superimpose again
to return the traces to their original positions.
c. Select the S. Impose button from the Function Key Area.
d. Click View > Superimpose .
1. Use either of the following methods to superimpose traces:
a. Select the S. Impose button from the Function Key Area.
b. Click View > Superimpose .