User's Manual

Respiration Rate Measurement
8-2 Monitoring Respiration Rate (Resp)
Respiration Rate Measurement
For the respiratory measurement (Resp), the MX40 measures the thoracic
impedance between two ECG electrodes on the patient's chest. Changes in
the impedance due to thoracic movement produce the Resp waveform on
the display. The MX40 counts the waveform cycles to calculate the
respiration rate (RR).The waveform size can be set using the Setup Resp
menu which is displayed when you touch the Resp measurement area.
Settings for Resp On/Off, alarms, alarm limits and apnea time are defined at
the Information Center. When the ECG measurement is turned off, the Resp
measurement is also turned off.
Note — The Resp measurement is not available when the MX40 is
wirelessly connected to MP5T, MP2, or X2 patient monitors. When not
connected wirelessly to a monitor and Resp is being measured, the message
SRR Unavailable with Resp is displayed on the MX40.