Operator's Manual

Table Of Contents
Symbols
34
BIS™ Advance Monitor
ASYM (Asymmetry) The difference in EEG power between the left and
right hemispheres of the brain over time.
ASYM is displayed as a value between 20% and
100%. It represents the ratio of EEG power present
in one hemisphere to the total EEG power (total
power = left power + right power).
ASYM is displayed only during four-channel
monitoring.
1.11. Symbols
The following symbols appear on the body of the monitor and on its packaging
(including labels).
Table 2. Symbols that Appear on the Monitor and its Packaging
Symbol Description Location
For prescription use only
Packaging
Consult instructions for use
Packaging
Consult instructions for use
Packaging
Caution, consult
accompanying documents for
warnings and precautions
Packaging