Ventilator Graphics Flashcards
- Flow
- PIP
- Resistive work or Transairway Pressure
- Pplat
- Cstat
- Baseline
- Expiratory Upstroke
- Alveolar Plateau
- Partial Pressure of End Tidal CO2
- Inspiratory Downstroke
What’s 1-3?
(Disregard #4)
- PIFR
- PEFR
- Tidal Volume
- Assisted Breath
- PEEP
What’s loop A?
What’s loop B?
A: Increased Raw on FV loop
B: Normal
x2
Active exhalation or increased mechanical deadspace
Air Leak
Air Leak
What is this?
What’s causing it (x2)
Rebreathing CO2.
(Inadequate flow or insufficient expiration time)
Bird Beak or Duck Bill
Overdistension.
More pressure with little additional volume
Capnogram
What does this pattern indicate?
What could cause it?
Indicates delayed exhalation of CO2.
Caused by obstruction, Bronchospasm, or kinked tube.
“Curare Cleft”
Asynchronous spontaneous breathing
(Ventilated, spontaneous patient may be starting to wake up!)
What does this indicate?
You should consider that the ___ might be too high.
Indicates patient effort.
Sensitivity might be too high.
Capnogram
Circuit leak
Increased Raw
Increased Raw
X2
Air leak
or
Air Trapping
This could be three things.
- ___ of trapped air
- ___ that is forced
- Increased ___.
Exhalation of trapped air
or
Forced Exhalation
or
Increased mech deadspace
Shift to the right
Bad compliance
What is this?
There are three situations where this can be found.
- Pt with high ___ who are on ___ (mode)
- Large Tv creates ___
- Patients on ___ (mode)
Missed Trigger
Air leak
Increased Raw
What is this and how do you treat it?
Flow starved
Increase the flow
Needs more PEEP
Note that the volume/press loop is set at a PEEP of 0 but there is no volume change until a pressure of 10 is reached. This creates the flat portion at the bottom of the curve. (Like a flat football)
Increased Raw
(It looks kinda flat.)
Auto-PEEP
Normal Spontaneous Breath
Normal, assisted breath
What is the most common answer to unusual ventilator troubleshooting questions?
Increase the flow
What’s this called?
How is the patient causing this?
Flow Starved
Pt breathing faster than the machine
What is the patient doing?
Why is he doing it?
I time too long.
Pt is trying to exhale
If the ventilator graphic shows an air leak, what’s the first thing you should do?
Manually ventilate the patient.
