Changing Hr Alarm Limits; Signals Overlap Verification; Maternal Nibp Monitoring; Introduction - EDAN F9 User Manual

F9 and F9 Express Fetal & Maternal Monitor User Manual
3 Select HR.
4 Select ON (default) or OFF for Alarm.
5 Select OK.

9.3.6 Changing HR Alarm Limits

You can change the HR alarm limits.
1 Select the setup key
2 Select Alarm. On the displayed Password box, enter 9999, then select Enter.
3 Select HR.
4 Select a value from 28 ~ 242 for Low Alarm Limit. (The step is 1, and the default value
is 50 bpm.)
5 Select a value from 29 ~ 243 for High Alarm Limit. (The step is 1, and the default value
is 120 bpm.)
6 Select OK.

9.3.7 Signals Overlap Verification

When monitoring maternal heart rate and fetal heart rate at the same time, there are possibilities
that maternal HR signal is mistaken for FHR signal. The SOV function of the monitor can also
reduce these possibilities.
In the process of monitoring, if the SOV detects signals overlapping, an alarm message "Signals
Overlap (FHR1/FHR2/DFHR, HR)" will appear on the screen to warn you. Checking the patient
and reposition of transducers might be needed.

9.4 Maternal NIBP Monitoring

9.4.1 Introduction

The monitor measures blood pressure using the oscillometric method.
Oscillometric devices measure the amplitude of pressure changes in the occluding cuff as the cuff
deflates from above systolic pressure. The amplitude suddenly increases as the pulse breaks
through the occlusion in the artery. As the cuff pressure decreases further, the pulsations increase
in amplitude, reach a maximum (which approximates to the mean artery pressure), and then
diminish.
There are two modes available: Manual and Auto. In manual mode, NIBP is measured once on
each demand. In auto mode, NIBP is measured repeatedly after a preset time interval. This
interval is adjustable. You can perform a manual measurement during an Auto measurement
interval.
In both modes, systolic pressure (SYS), diastolic pressure (DIA) , mean artery pressure (MAP)
on the main interface.
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Maternal Monitoring