Page 15 / 38
hoses, and excessive condensation at filters and HMEs (
heat and moisture exchangers
) that
may lead to increased resistance.
-
If a shortage (e.g. of accessories) exists or is unavoidable, refer to
support in case of supply shortages.
4
Therapy
4.1
Fresh gas flow
4.1.1 General recommendation
– high fresh gas flow
-
To avoid having the rebreathing of the patient create excessive additional humidity in the
system, a fresh gas flow of at least 150% of the minute volume
of the patient is required. If
the device has a heated breathing system, we recommend that the heating remains active for
long-term therapy. Please refer to Attachment 6: Fresh gas settings if you have questions in
regards to fresh gas settings and refer to chapter 5 for gas consumption.
4.1.2 Additional fresh gas flow
-
When using Perseus A500 with electronic gas mixer the
fresh gas flow can be additionally
increased by opening the emergency O
2
flow control
. Please refer to
Gas Scavenging (AGS) alternativesAttachment 5: Increasing fresh gas flow by opening the
emergency O2 flow control.. This gas is added to the already set fresh gas flow of the mixer.
An alarm will occur. The priority can be reduced by resetting the alarm (only possible with some
devices).
4.1.3 Reduced fresh gas flow
-
If reduced fresh gas flows are used
(e.g. due to shortage of supplied gases or need for
increased humidity of the patient gas) more rebreathing will take place in the system, and
o
condensation may compromise the system functionality (up to malfunction of
ventilation)
o
the consumption of soda lime will increase, see chapter 5
Summary of Contents for Perseus A500
Page 34: ...Page 34 38 6 1 Decision tree ...
Page 37: ...Page 37 38 10 1 Decision tree ...
