PHILIPS Respironics Trilogy 202 User Manual page 139

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Issue
Sinus or Ear Pain
The patient experiences
nasal, sinus, or ear pain.
Patient Tubing Condensation
There is condensation in the
circuit tubing or exhalation
valve lines.
Exhalation Valve or Flow
Tube Condensation (Active
Flow Circuit only)
There is condensation
in the proximal flow or
exhalation valve lines, and
the condensation is causing
the system to alarm or not
properly trigger on patient
effort.
Trilogy 202 clinical manual
Why It Happened
The patient may have a sinus
or middle ear infection. This
only applies to non-invasive
therapy and will not occur
during invasive therapy.
Moisture added to the circuit
from a heated humidifier may
condense. This condensation is
typically referred to as "rain-out. "
Excessive humidity (from
the heated humidifier, the
patient, or the cleaning
process) condensed in the
tubing or exhalation valve
diaphragm. Droplets of
water affected the ability of
the ventilator to measure
proximal patient flow and
pressure and trigger on a
patient breath.
What To Do
Consult with a physician.
Use an appropriate method of
water management, such as a
water trap when using a heated
humidifier.
Remove tube(s) with
condensation: the exhalation
valve line must be removed from
both ends of the circuit; the flow
tube lines must be removed
from the ventilator side. The
tubes are permanently attached
to the flow element, so the flow
element must be removed from
the patient circuit. If there is
water built up in the exhalation
diaphragm, disassemble the
exhalation valve and clean/dry
the assembly. Clear the flow
tubes of water droplets using
a low flow air source and re-
assemble the circuit.