Product Manual

Patient Monitor User Manual Monitoring CO
2
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CAUTION
6 The sample gas flowrate 50 ml/min is only applicable to patients whose respiratory
rate ranges from 0 rpm to 40 rpm.
NOTE:
To avoid patient cross infection, do not connect the exhaust tube to the ventilator circuit.
If the sampled gas is returned to the breathing system, always use the bacterial filter of
the sample gas return kit.
16.3.2.2 Removing Exhaust Gases from the System
WARNING
Do not connect the exhaust tube to the ventilator circuit, connect the outlet to a
scavenging system, cross infection can occur if sampling gas is returned to the breathing
system. When using the sidestream CO
2
measurement on patients who are receiving or
have recently received anesthetics, please avoid exposing medical staff to anesthetics.
Use an exhaust tube to remove the sample gas to a scavenging system. Attach it to the sidestream
sensor at the outlet connector.
16.4 Setting CO
2
Corrections
Temperature, water vapor in the patient’s breath, barometric pressure, and the proportions of O
2
,
N
2
O and Helium in the mixture all influence CO
2
absorption. If values seem inaccurately high or
low, check that the monitor is using the appropriate corrections.
The following items are available in the CO
2
Other Setup menu: N
2
O Compen., O
2
Compens.,
Anest. Agent, Vapor Compen. and Pump Rate. The concentration of compensated gas should
be set based on the current gas concentration which is supplied for patient. As for O
2
and N
2
O,
make the supplied gas concentration multiply to its volume to get the concentration. For instance,
supply 100% O
2
, and its volume is 60%, then O
2
compensation is: 100%*60%=60%. AG
concentration is decided by anaesthesia apparatus. After settings, the interface will display a
dialog box: Confirm to change the settings? And the detailed settings are displayed under the
warning. Click Yes to confirm, and click No to cancel the settings.
NOTE:
Make sure compensation value is correctly set, otherwise the measurement accuracy
may be affected.
16.5 Setting Apnea Delay
This determines the time limit after which the monitor gives an alarm if the patient stops breathing.
1. Select CO
2
Setup > Apnea Alm;
2. Choose the apnea alarm time from the pop-up list.