Fetal Heart Rate Offset; Enabling/Disabling The Fetal Heart Rate Offset Mode - GE Corometrics 170 Series Operator's Manual

Fetal Heart Rate Offset

Enabling/Disabling the Fetal Heart Rate Offset Mode

NOTE: Enabled and active do not
mean the same thing. When the option
is enabled via the service mode, you
then have the capability to activate and
de-activate the function as needed.
Revision D
Fetal Heart Rate Monitoring: Fetal Heart Rate Offset
The Model 172 monitors twins using dual ultrasound. The Model 173 (with only
one ultrasound channel) monitors twins using FECG and ultrasound. The Model 174
(with a combi-connector) can monitor twins using FECG/ultrasound or dual
ultrasound. When monitoring twins, overlapping fetal heart rate traces may be
difficult to interpret. Models 172, 173, and 174 provide a +20 BPM shift for the
secondary FHR trend to alleviate this problem.
The fetal heart rate offset mode can be enabled/disabled from a service setup mode.
Refer to the "170 Series Service Manual"
The fetal heart rate offset mode has three settings:
disabled: users cannot activate the function.
enabled/on: users can activate/de-activate the function.
enabled/auto-revert: users can activate/de-activate the function; in addition, the
shifted trend automatically returns to the unshifted position after ten minutes.
US2 + 20
Figure 5-2. Fetal Heart Rate Offset Example (Model 172 shown)
170 Series Monitor
2003023-001
for more information.
FHR
5-5