Welch Allyn Vital Signs Monitor, Propaq Encore - Quick Reference Guide - Manual (Page 68)

62 Patient monitoring Welch Allyn Propaq Encore Vital Signs Monitor
How to set up the CO
2
channel and alarm limits
After you connect the mainstream CO
2
sensor or sidestream CO
2
watertrap adapter,
follow these steps to set up the CO
2
channel and alarm limits.
1. Press SpO2/CO2, CO2 to display the first CO
2
Menu.
2. Press RANGE until you see the desired waveform scale range on the Propaq screen.
The range choices are shown below.
3. Press mm/s to select either 3.13, 6.25 or 12.5 mm/sec. The default setting is 6.25
mm/sec. This sweep speed also applies to RESP.
4. Press MORE to view the CO
2
status window.
5. If either O
2
or N
2
O is being administered to a patient, press GAS COMP to set the
proper gas compensation as listed below. If no other gas is being administered, set
GAS COMPENSATION to OFF. (OFF is the default setting.)
WARNING When disconnecting the CO
2
sensor from the tracheal or
endotracheal tube, check the sensor to determine how hot it is. If it is too hot for
patient comfort, do not allow it to come into contact with the patient.
Note When disconnecting the airway adapter from the ventilator circuit, always detach
the CO
2
sensor from the airway adapter before removing the airway adapter from
the ventilator circuit.
Note After you connect a mainstream CO
2
sensor or sidestream CO
2
watertrap
adapter, the Propaq displays the waveform briefly without a value range. It
displays WARM UP (for mainstream) or START UP (for sidestream) in the CO
2
numerics window. After about 20 seconds, the Propaq displays the CO
2
measurement and waveform range.
Units Waveform Scale Range
mmHg 0-100 0-60 (default
setting) 0-30
kPa 0-14 0-8 0-4
% 0-14 0-8 0-4
Note If an inspired value is displayed indicating patient rebreathing (non-zero IN CO
2
),
check the patient breathing circuit for proper function. Verify the sensor calibration
against room air. If the Propaq continues to display inspired values, return the
sensor to Welch Allyn for service.
Gas Administration Level/
GAS COMP Setting ETCO
2
or INCO
2
Value
OFF CO
2
value = actual CO
2
value
O
2
> 50%, No N
2
O CO
2
value = actual CO
2
value x 1.03
N
2
O > 50% CO
2
value = actual CO
2
value x 0.952