BT-780 Operation manual
28
P/N : 780-ENG-OPM-EXP-R00
Bistos Co., Ltd.
2020.03
8.3 Placing electrodes for respiration monitoring
Since the skin is a poor conductor, it is very important to treat the patient's skin for electrode placement appropriately to get better
respiration signals. Refer to 7.3.1.
Respiration measurement uses standard ECG cable and electrode placement method. You can use different ECG cables (3-lead or 5-
lead). Respiratory signal is measured between two ECG electrodes. If standard ECG electrode position is used, the two electrodes
are R (right arm) and L (left arm) electrodes of I lead or R (right arm) and F (left leg) electrode of II lead.
NOTE
For optimal respiration wave, R and L electrodes should be placed horizontally if I lead is selected for respiration
measurement. R and F electrodes should be places diagonally if II lead is selected for respiration measurement.
Figure 8-1 below shows the placement of 5-lead electrodes.
Figure 8-1: 5-lead respiration electrode placement
8.3.1 Adjusting position of respiration electrode
If you want to measure ECG and respiration simultaneously, you may need to adjust the position of the two electrodes for
respiration measurement.
NOTE
Adjusting the standard position of ECG electrodes will lead to changes in the ECG wave, and may affect the ST
and arrhythmia analysis.
8.3.2 Cardiomotility superimpose
The effect of cardiomotility on the respiratory wave is called cardiomotility superimposing. When the respiration electrodes collect
impedance changes caused by rhythmic blood flow, this will happen. Placing the respiration electrodes correctly will reduce this
effect. The liver and ventricle should avoid the connection of respiration electrode, so that the heart or pulsating flow won’t
generate artifact.
8.4 Respiration display
Respiration wave is displayed as shown in Figure 8-2.
Figure 8-2: Respiration wave
Respiration parameters are displayed as shown in Figure 10-3.
Figure 8-3: Respiration parameter display
8.5 Respiration setup
Select the RESP parameter zone or respiration wave area
→
“RESP Setup” menu, which is shown below. You can set respiration
through “RESP Setup” menu.
