BeneVision N22/N19 Patient Monitor Operator’s Manual 12 - 5
12.5.4 Setting the Resp Waveform Size
To set the Resp waveform size, follow this procedure:
1. Select the Resp numeric area or waveform area to enter the
Resp menu.
2. Select the
Setup tab.
3. Set
Gain.
12.5.5 Setting the Resp Waveform Speed
To set the Resp waveform speed, follow this procedure:
1. Select the Resp numeric area or waveform area to enter the
Resp menu.
2. Select the
Setup tab.
3. Set
Speed.
12.5.6 Setting the Auto Detection Switch
To set the auto detection switch, follow this procedure:
1. Select the Resp numeric area or waveform area to enter the
Resp menu.
2. Select the
Setup tab.
3. Switch on or off
Auto Threshold Detection.
â—† On: the monitor automatically adjusts the Resp waveform detection level, or threshold.
â—† Off: you have to manually adjusts the Resp waveform threshold. For more information, see
12.5.7 Adjusting the Resp Waveform Detection Threshold.
In the auto detection mode, if you are monitoring Resp and ECG is switched off, the monitor cannot compare the
ECG and Resp rates to detect cardiac overlay. The respiration detection level is automatically set higher to prevent
the detection of cardiac overlay as respiration.
In the manual detection mode, cardiac overlay can in certain situations trigger the respiration counter. This may
lead to a false indication of a high respiration or an undetected apnea condition. If you suspect that cardiac
overlay is being registered as breathing activity, raise the detection level above the zone of cardiac overlay. If the
Resp wave is so small that raising the detection level is not possible, you may need to optimize the electrode
placement.
12.5.7 Adjusting the Resp Waveform Detection Threshold
Use the manual detection mode in the following situations:
â—† The respiration rate and the heart rate are close.
â—† Patients have intermittent mandatory ventilation.
â—† Respiration is weak. Try repositioning the electrodes to improve the signal.
To set the Resp waveform threshold to the desired level, follow this procedure:
1. Select the Resp numeric area or waveform area to enter the
Resp menu.
2. Select the
Threshold tab.
3. Select the up and down arrows below
Upper Line and Lower Line to define the Resp waveform threshold.
Once set, the detection level will not adapt automatically to different respiration depths. It is important to
remember that if the depth of breathing changes, you may need to change the detection level.
12.6 Resp Troubleshooting
For more information, see D Alarm Messages.
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