Exam (elaborations)
RES 154 IPPB Troubleshooting – Questions & Solutions
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RES 154 IPPB Troubleshooting – Questions & Solutions
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RES 154 IPPB Troubleshooting – Questions & SolutionsIf the machine won't trigger on: Right Ans - - check sensitivity control
- if the manometer needle is not moving, check for large leak
- check gas supply for 50 psig
- check to see if the breathing valve is sticking (should manually activate with
ease)
If the manometer registers high level of negative pressure after the machine
triggers on: Right Ans - - inadequate flow may be causing flow starvation.
increase the flow rate
- the pt is actively inhaling. coach the pt to passively allow the machine to fill
the lungs
If the machine won't cycle off: Right Ans - - check for system leaks
(exhalation valve, lines, connection, nebulizer, pt connection). tighten all
connections, coach pt to keep a tight seal w/the lips or use a lip seal
- check for sticking breathing valve
- add terminal flow gradually to compensate for small leaks (bennett)
If the machine auto-triggers on, check for the following: Right Ans - - too
sensitive. adjust the sensitivity control to make it more difficult to initiate a
breath
- rate control on. make sure the expiratory timers are off
If the pressure manometer needle is very slow to return to baseline, check for
the following: Right Ans - - sticking valve
- retard device in place
- pt forcefully exhaling. instruct pt to passively exhale
If there is very little gas flow, check for the following: Right Ans - - gas
source for 50 psig
- inlet filter dirty
- occluded breathing hose
- gas leak
if the machine cycles off prematurely: Right Ans - - check for/correct any
circuit occlusion
- flow may be too high. adjust the gas flow to a lower setting (Bird)
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