Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

PVRS > BIPAP vision > Flashcards

BIPAP vision Flashcards

1
Q

Can BIPAP be used invasively?

A

NO

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

IS BIPAP a life support?

A

NO

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what interfaces can bipap used with?

A

1) a single limb, open circuit with intentional leak on patient face mask
2) used for non-life supported invasive ventilation if properly equipped

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Does BIPAP have a backup battery for system?

A

NO

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the Rechargeable battery for?

A

the operation of the alarm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the pnuematic source of BIPAP

A
  • High pressure Oxygen
  • ->it can function without O2
  • blower
  • ->draws ambient air in
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What control the output flows in BIPAP

A

PVA (pressure valve assembly)regulates system flow and pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the air flow through the BIPAP pneumatic system?

A

ambient air–>filter–>blower–>PVA(pressure valve assembly) –> pass through the exhaust –>AFM (airflow sensor) –> patient circuit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the controlled pressure valve in BIPAP?

A

1 controls IPAP

1 acts as exhaust to maintain EPAP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How is pressure maintained?

A

Based on IPAP and EPAP settings
–> control circuit adjusts the electrical current in the pressure valve coil

–>The electrical current, in combination with a magnetic field, produces a force on the valve disc

–> this force produced must equal the force created by the air pressure to maintain a stable pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How does PVA adjust the pressure?

A

by controlling the amount of flow going to the patient via the exhaust

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the exhaust function?

A

fxn similar to a exhalation valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the AFM (air flow module)

A

detect the pressure and flow from the proximal pressure line, which signals the exhaust and blower to initial its adjustment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

how does the blower adjust the fow

A

by varying its speed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Where is the proximal line enter to the system?

A

flow of gas entering before the AFM

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

how to add supplementary flow in BIPAP

A
  1. add flow a mask port (up to 15 lpm

2. add flow at machine outlet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What function is needed to be activated after adding supplementary flow

A

LEARN BASE FLOW

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What are the total leaks of the BIPAP

A

fixed leak + unintentional leak

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What are the total flow consisted in in BIPAP?

A

total flow = estimated flow (going into the patient) + (unintentional + fixed) leak

20
Q

what is the fxn of Exhalation Port Test

A

Measures intentional leak from exhalation port

21
Q

What is the display if Exhalation Port Test isnt done

A

tot leak

22
Q

What is the display if Exhalation Port Test is done

A

Pt leak

23
Q

when to perform exhalation port test? and why

A

when mask is changed

because it measures the fixed leak of the new mask to calculate baseline leak

24
Q

What is the function of Auto-Trak Sensitivity

A

recognize and compensate for unintentional leaks

25
Q

How does the Auto-Trak Sensitivity work

A

adjust its trigger and cycle based on Tidal Volume or Expiratory Flow rate

26
Q

How does the Auto-Trak Sensitivity use expiratory flowrate ?

A

1) it measures the baseline flow 5 sec after the start of cycling
2) if the flow is above the baseline flow ( which is 0), it assumes unintentional leak
3) it d then adjust the flow by comparing the current leak and previous leak flow

27
Q

Why does the VT relate to the leak

A

1) Unit assumes volume into the pt. = volume out of pt.
2) If the volume out is greater, assumes the extra volume is unintentional insp leak volume.
3) Volume will be adjusted based on the calculation

If more volume results in increase baseline leak –> the new volume given will be less

28
Q

What is the trigger of BIPAP

A

Volume
- 6cc inspired volume accumulates above baseline flow, trigger by patient

Shadow/shape signal
- when the shadow waveform meet the actual waveform

29
Q

how does the Shape Signal

work?

A

follows” the flow pattern, at 15 lpm less flow, 400msec “behind” the pt. flow

  • helps with triggering and cycling
30
Q

What cycles BIPAP

A
  1. Shape Signal (same as triggering)
  2. Spontaneous Expiratory Threshold (SET)
  3. Flow reversal
  4. Time back up
31
Q

how does the SET work

A

Electronic signal that rises in proportion to the inspiratory flow rate on each breath

  • signal will rise until it intersects with the inspiration, then cycle
32
Q

how does flow Reversal work

A
  1. Cycles out of IPAP if large leak occurs

2. while the flow is decelerating, it then accelerates in response to a large leak

33
Q

What is the I time backup for cycling

A

3 sec

34
Q

What are the mode of BIPAP

A

• CPAP (spontaneous)
• PSV (IPAP/EPAP)
• Spontaneous/timed (S/T)
- PAV/T

35
Q

What is the setting for CPAP mode

A

CPAP,
FiO2
RATe

36
Q

What is the setting for S/T mode

A 
IPAP, EPAP,
Rate
I time
rise time
FiO2
37
Q

When does S/T switch to time mode

A

when spont RR drops below set rate, vision deliver PC breath (set IPAP and I TIME)

38
Q

how to tell if the time mode is activated

A

‘V’ appears on VT waveform

39
Q

how does the PAV/T work

A

Delivers pressure in proportion to effort

40
Q

settings of PAV/T

A
  • % set,
  • Maximum Volume Assist,
  • Maximum Flow Assist

If patient fails to trigger the breath –> becomes a time breath
- Back up rate and other parameters (IPAP, EPAP, I time, rise time)

41
Q

When does the exh port alarm go off

A

baseline flow is < 5 L/min or 50% of intentional leak for one minute

42
Q

when does the Hi P go off

A

Proximal pressure > setting for > 0.5 second

43
Q

when does the low pr go off?

A

Proximal pressure below criteria for duration of Low pressure delay

44
Q

What is low pressure delay

A

the maximum amount of time allowed for proximal pressure to be lower than the set Low P

45
Q

when is learn base flow activated?

A
  • After changing circuit

- After adding flow to the circuit

46
Q

what are the precaution when using BIPAP

A

1 . Pt. must be able to support their ventilation and protect their airway

  1. DO NOT use a HME–interferes with flow sensing capabilities

PVRS (17 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions