Mindray uMEC10, Operator'S Manual

Page: 158 / 288

16-2
16.3 Measurement Limitations
The following factors may influence the measurement accuracy:
„
Leaks or internal venting of sampled gas
„
Mechanical shock
„
Cyclic pressure up to 10 kPa (100 cmH
2
O)
„
Other sources of interference, if any
Measurement accuracy may be affected by the breath rate and inspiration/expiration (I/E)
ratio as follow:
„
EtCO
2
value is within specification for breath rate 60 bpm and I/E ratio 1: 1;
„
EtCO
2
value is within specification for breath rate 30 bpm and I/E ratio 2: 1.
Measurement accuracy is unspecified for breath rate larger than 60 bpm.
16.4 Understanding CO
2
Display
The CO
2
parameter and waveform areas provide FiCO
2
measurement, EtCO
2
measurement,
awRR measurement, and a CO
2
waveform.
(1) CO
2
waveform
(2) Fraction of inspired CO
2
(FiCO
2
)
(3) End tidal CO
2
value (EtCO
2
)
(4) Airway respiration rate (awRR)
(1)
(3)
(4)
(2)