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Rev. 3.0
91
BM3 User’s Manual
Patient Preparation
Skin preparation and electrode placement must be properly and carefully monitored in impedance
breath monitoring. You can produce reliable results. Follow the same recommendations as ECG
monitoring Please. In general, the electrodes should be placed as clean as possible with the 60Hz
noise minimized Make it possible to generate a signal. The best results can be obtained when the
electrode is firmly bonded and the electrode area is wide. To improve the RESP signal, use a 5-
lead cable set (RL as a neutral electrode). It is recommended that the electrode be placed in the
maximum expansion and contraction range of the lung, especially if deep breathing is involved.
For newborns, place the RA and LA electrodes on the mid-armpit line with the nipple. Place the
LL electrodes under the diaphragm and navel. Avoid the liver and the ventricles of the heart to
prevent 60Hz noise from pulsatile blood circulation. The following figure shows where we
recommend placing ECG leads for impedance breathing in adults and neonates
Lead II
Respiration
position
Lead I
Respiration
position
