Revision C 250cx Series Maternal/Fetal Monitor C-15
2036946-001
Spectra Alerts: Uterine Contraction Frequency
UC Frequency Histogram
If the Spectra Alerts option is enabled, the UA Setup screen displays a UC
Frequency Histogram as shown in the next Figure. Each bar in the graph represents
the number of contractions in a 10-minute segment. The graph displays up to 10 bars
(or 100 minutes).
UC Frequency Histogram
The following two messages may display above the UC Frequency Histogram:
RECORDING UA? and UA BASELINE SET?
For more information, refer to Table on
pages C-17 through C-21.
Enabling/Disabling UC Chime
If the Spectra Alerts option is enabled, the UA Setup screen contains a UC Chime
field. When enabled: a low-frequency chime sounds at the onset of a contraction; a
high-frequency chime sounds at the conclusion. This audio contraction indicator is
useful to caregivers as well as patients. Caregivers are made aware of contractions
during internal exams or while making adjustments to internal sensors/transducers
without having to watch the monitor. An anesthetized mother can use the indicator
as a “push signal” if she is unable to feel contractions.
To enable/disable the UC Chime:
1. Access the UA setup screen by selecting the UA mode title (TOCO or IUP).
2. Set the UC Chime field to the desired setting: On or Off. Refer to the Figure, “UC
Frequency Histogram”.
148
153
59
Exit
US
FECG
TOCO
>= 10
9
8
7
6
5
4
3
2
1
0
UC in 10 min
3 UC/10
UA Display: UA/UCF UC Chime: OFF
09:44
10:24
11:14
UA
UA/UCF
On
Off
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