17 Monitoring Noninvasive Blood Pressure
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NOTE
Be aware that a combination of a recorder speed of less than 3 cm/min and a repetition time of less
than five minutes can result in not all noninvasive blood pressure measurements being recorded on the
fetal trace. For example, if the recorder speed is set to 1 cm/min and the repetition time is set to
2 minutes, due to the low speed setting, the recorder will only be able to record every other
noninvasive blood pressure measurement. This affects only the local fetal trace recording, and all
measurements are displayed as normal on the monitor's screen.
Choosing the Alarm Source
You can monitor for alarm conditions in systolic, diastolic and mean pressure, either singly or in
parallel. Only one alarm is given, with the priority of mean, systolic, diastolic.
If mean is not selected as alarm source (
Sys., Dia., or Sys & Dia selected), but the fetal monitor can
only derive a mean value, mean alarms will nevertheless be announced using the most recent mean
alarm limits. Check that the mean alarm limits are appropriate for the patient, even when not using
mean as the alarm source. When no value can be derived an
NBP MEASURE FAILED INOP will be
displayed.
Assisting Venous Puncture
You can use the cuff to cause sub-diastolic pressure. The cuff deflates automatically after a set time if
you do not deflate it.
1 In the Setup NBP menu select VeniPuncture.
2 Puncture vein and draw blood sample.
3 Reselect VeniPuncture to deflate the cuff.
During measurement, the display shows the inflation pressure of the cuff and the remaining time in
venous puncture mode.
Menu option Pressure value monitored
Sys. systolic
Dia. diastolic
Mean mean
Sys & Dia systolic and diastolic in parallel
Dia & Mean diastolic and mean in parallel
Sys & Mean systolic and mean in parallel
Sys&Dia&Mean all three pressures in parallel
1 Cuff pressure
2 Venous puncture measurement
mode
3 Time left in venous puncture
mode
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