P1 Patient Monitor User’s Manual
9-3
CAUTION:
Proper skin preparation is necessary for good signal quality at the electrode site,
as the skin is a poor conductor of electricity
9.4.2. Placing the Electrodes
As the Respiration measurement adopts the standard ECG electrode placement, you
can use different ECG cables. Since the respiration signal is measured between two ECG
electrodes, if a standard ECG electrode placement is applied, the two electrodes should be
RA and LA, or RA and LL.
For more information, see 8.4.2 Applying Electrodes.
RA-LA RA-LL
CAUTION：
Correct electrodes placement can help to reduce cardiac overlay: avoid the
liver area and the ventricles of the heart in the line between the respiratory
electrodes. This is particularly important for neonatals.
Some patients with restricted movements breathe mainly abdominally. In these
cases, you may need to place the left leg electrode on the left abdomen at the
point of maximum abdominal expansion to optimize the respiratory wave.
In clinical applications, some patients (especially neonatals) expand their chests
laterally, causing a negative intrathoracic pressure. In these cases, it is better to
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