19-12 DELTA/DELTA XL/KAPPA VF8
19
ETCO2 (END-TIDAL CO2) MONITORING
Quick Reference Table – etCO
2
Setup
The following table explains etCO
2
setup functions.
Function Description Settings
Calibration
Sensor Cal.
Displays date and time of last Capnostat sensor
calibration
Not applicable
Adapter Cal. Initiates airway adapter calibration Not applicable
Gas Compensation
Gas compensation offsets inappropriate levels of anesthetic agents by ensuring that gas
percentages in each respiratory phase add up to 100: each gas in any gas mixture exerts a partial
pressure of the total. Room air, for example, is made up of approximately 79% nitrogen and 21%
oxygen. Gas concentration is usually expressed as a percentage, while partial pressure is
measured in mmHg or kPa. These setup functions differ according to the device used to monitor
etCO
2
(pod or module).
Agent
Compensation
(pod only)
Sets value of primary expired anesthetic agent •1% - 20%
Gas
Compensation
(pod only)
Determines gas percentages for inspiratory and
expiratory breathing. The table below lists
settings on the Gas Compensation menu in the
first column and lists automatically calculated
percentages in the right five columns
•Air
•N2O/O2
•>60%O2
•Heliox
N2O
Compensation
(module only)
Compensates for presence of nitrous oxide, not
normally present in room air but typically used in
the operating room. Significant concentrations
of nitrous oxide can cause the monitor to
overestimate the level of etCO
2
by
approximately 5 %.
•ON
•OFF
O2 Compensation
(module only)
Compensates for patient’s supplemental
oxygen. Failure to compensate for supplemental
oxygen can also result in inaccurate
measurements.
•21% - 100%
Other etCO
2
setup functions
Scale Determines size of currently displayed
waveform
• 40 mmHg
• 60 mmHg
• 80 mmHg
• 100 mmHg (pod only)
Setting
Agent
CO2 O2 N2 N2O He
Air 5 17 78 0 0
N2O/O2 5 35 0 60 0
>60% O2 5 75 20 0 0
Heliox 5 35 0 0 60