Mindray VS 8A, Operator'S Manual

Page: 134 / 278

12 - 2
12.3 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
ratio (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.
12.4 CO
2
Display
The CO
2
numeric and waveform areas provide FiCO
2
measurement, EtCO
2
measurement, RR measurement and a CO
2
waveform.
1. CO
2
waveform
2.
End tidal
CO
2
value (EtCO
2
)
3. Fraction of inspired CO
2
(FiCO
2
)
4. RR (Respiration Rate)
5. RR source: indicates the source of the current RR value
2
4
1
3
5