Patient Monitor User Manual Specifications
- 181 -
CO
2
Rise Time/Response
Time(Mainstream)
Sensor Response time
(Sidestream)
<3 seconds - includes transport time and rise time
Interfering Gas and Vapor Effect on EtCO
2
Measurement Values:
Quantitative effect/Comments
Nitrous oxide
Halothane
Enflurane
Isoflurane
Sevoflurane
Xenon
Helium
Desflurane
Dry and Saturated Gas
0 mmHg– 40 mmHg: ±1 mmHg additional error
41 mmHg – 70 mmHg: ±2.5% additional error
71 mmHg – 100 mmHg: ±4% additional error
101 mmHg – 150 mmHg: ±5% additional error
*Additional worst case error when compensation
for P
B
, O
2
, N
2
O, anesthetic agents, or helium is
correctly selected for the actual fractional gas
constituents present.
Desflurane:
The presence of desflurane in the exhaled breath at
concentrations greater than 5% will positively bias
Carbon Dioxide values by up to an additional 3
mmHg at 38 mmHg.
Xenon:
The presence of Xenon in the exhaled breath will
negatively bias Carbon Dioxide values by up to an
additional 5 mmHg at 38 mmHg.
Barometric Pressure on EtCO
2
Measurement Values:
Ambient Barometric, Operational
0 mmHg – 40 mmHg: ±1 mmHg additional error
41 mmHg– 70 mmHg: ±2.5% additional error
71 mmHg– 100 mmHg: ±4% additional error
101 mmHg – 150 mmHg: ±5% additional error
*Additional worst case error when compensation for P
B
, O
2
, N
2
O, anesthetic agents, or helium
is correctly selected for the actual fractional gas constituents present.