Brainscape's Knowledge GenomeTM

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


See full index

Medical Instrumentation (MI) > Ventilator Terms > Flashcards

Ventilator Terms Flashcards

1
Q

What are the 4 Ventilator Basics Terms?

A

1) Control Variables
2) Conditional Variables
3) Trigger
4) Cycle

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

What is Control Variables?

A

It is basically target variables set on the ventilator to help assist breathing, and once set, it is fixed unless you change it

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

What is Conditional Variables?

A

It is variables that can change accordingly to the nature of each breath to achieve the set control variables
(Example: patient breath less effort conditional variable air pressure in ventilator increase to achieve set tidal volume in volume mode)

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

What is Trigger?

A

The factor that triggers inspiration

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

What is Cycle?

A

The factor that determines the end of the inspiration and start of exhalation ( can be pressure , time or flow cycle )

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

What are the 6 Physiological Terms for Ventilators?

A

1) Airway resistance
2) Lung compliance
3) Atelectasis
4) Derecruitment
5) Recruitment
6) Predicted body weight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is Airway Resistance?

A

It is the resistive force encountered during mechanical respiratory cycle ( Normal is < or equal to 5cm H20 )

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

What is Lung Compliance?

A

Refers to the elasticity of the lungs or how easy it is to expand and accommodate change in volume/pressure

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

What is Atelectasis?

A

It refers to the complete or partial collapse of the lungs / area of the lung

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

What is Derecruitment?

A

It is the loss of gas exchange surface area in the lungs due to Atelectasis

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

What is Recruitment?

A

It is the restoration of gas exchange surface area in the lungs by applying pressure to open up the area of collapse

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

What is Predicted Body weight?

A

It is a setting on the ventilator that predicts patient body weight based on sex and height

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

What are the 4 Phases of Mechanical Breathing?

A

1) Initiation Phase
2) Inspiratory Phase
3) Plateau Phase
4) Exhalation Phase

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

What is The Initiation Phase?

A

It is the start of mechanical breathing ( can be trigger by patient or machine and have slight air sucking at the start )

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

What is the Inspiratory Phase?

A

It is the phase where there is flow of air into the patient’s lung to achieve control variable

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

What is Plateau Phase?

A

It is the phase where there is no air flow for approximately 0.5 seconds in between inspiration and exhalation

17
Q

What is Exhalation phase?

A

It is a passive process in mechanical breathing ( stop positive air flow and open outlet to atmospheric air pressure to induce exhalation )

18
Q

What are the 13 Ventilator Settings?

A

1) PIP ( Peak inspiratory pressure )
2) Pplat ( Pressure Plateau/ Plateau Pressure )
3) PEEP ( Positive End Expiratory Pressure)
4) IPEEP ( Intrinsic PEEP )
5) Driving Pressure
6) iTime ( Inspiratory time )
7) eTime ( Expiratory time )
8) I:E ratio
9) PIF ( Peak Inspiratory Flow )
10) TV ( Tidal Volume )
11) RR ( Respiratory Rate )
12) MV ( Minute Ventilation )
13) FiO2 ( Fraction of inspired oxygen )

19
Q

What is PIP? ( Peak Inspiratory Pressure )

A

It is the max pressure in the airways at the end of inspiratory phase
( ideal PIP is < 35 cm H2O or less than 35 cm H2O)

20
Q

What is Pplat? ( Plateau Pressure )

A

It is the pressure that remains in the lung alveoli during the cessation of air flow/ plateau phase
( ideal should be at < 30cm H2O or less than 30 cm H2O)

21
Q

What is PEEP ( Positive End expiratory Pressure )

A

It is the positive pressure that remains at the end of exhalation
(usually set at 5cm H2O to prevent atelectasis)

22
Q

What is IPEEP? (Intrinsic PEEP or auto PEEP)

A

It is the pressure that remains in the lung due to incomplete exhalation in patient with problem lungs

23
Q

What is Driving Pressure?

A

It is a term that describes pressure change in inspiration. It is the pressure that would be used to to expand the lungs ( calculated by Pplat - PEEP )

24
Q

What is iTime? (Inspiratory Time)

A

It is the time given to the machine to deliver the targeted control variable ( set TV or set Pressure )

25
Q

What is eTime? (Expiratory Time)

A

It is the time given to the machine to allow for full exhalation phase

26
Q

What is I:E ratio?

A

It is the Ratio of iTime and eTime, reducing the ratio will increase expiratory time and vice-versa

27
Q

What is PIF? ( Peak Inspiratory Flow )

A

It is how fast at which the breath is delivered to the patient and is expressed in L/min ( how fast the inspiratory phase is )

28
Q

What is TV ( Tidal Volume )

A

It is the volume of gas that is delivered to the patient with each Inspiration/Breath, it is usually expressed in mL

29
Q

What is RR? (Respiratory Rate)

A

It is the number of breaths delivered to the patient in a minute
This variable will affect the entire respiratory cycle time

30
Q

What is MV? ( Minute Ventilation )

A

It is the amount of ventilation the patient receive in 1 minute
Healthy adult is 4-6 L/min and unhealthy is 12-15L/min
( calculated by : TV x RR )

31
Q

What is FiO2? ( Fraction of inspire oxygen )

A

It is the measure of the amount of oxygen delivered to a patient during inspiration and expressed in percentage (%)
( room air 21% O2 ; ventilator can be up to 100% )

32
Q

What are the 7 Ventilator modes?

A

1) AC mode ( Assist Control )
2) SIMV mode ( Synchronized intermittent mandatory Ventilation )
3) PRVC mode ( Pressure regulated volume control )
4) Pressure support mode
5) NIPPV mode ( Non invasive positive pressure ventilation )
6) CPAP mode ( Continuous Positive airway Pressure )
7) BPAP (Bilevel Positive Airway Pressure)

33
Q

What is AC Mode? ( Assist Control )

A

This mode delivers the set targeted control variable to the patient regardless ( Basically Mandatory Mode )

34
Q

What is SIMV? ( Synchronized Intermittent Mandatory Ventilation)

A

In this mode, when the patient does not have spontaneous breath, the machine acts like AC and delivers set targeted control variable to patient and when patient have spontaneous breath, the machine only give CPAP to patient ( Basically when no breath mandatory mode, when got breath from patient spontaneous mode )

35
Q

What is PRVC? ( Pressure Regulated Volume Control )

A

This mode delivers set tidal volume by the clinician to the patient at the lowest pressure possible to prevent the lung from getting injured ( Is a Mandatory mode that will auto the pressure to lowest )

36
Q

What is Pressure support?

A

This mode basically will delivery the PEEP to the patient for support and extra pressure if needed. Machine will stop if no spontaneous breath from patient ( This is basically Spontaneous mode to help in preventing the collapse of the lungs )

37
Q

What is NIPPV? ( Non Invasive Positive Pressure Ventilation )

A

This mode consist of 2 mode and its the delivery of the ventilation through tight fitted face mask or nasal prongs. CPAP and BPAP is under this mode ( no endotracheal tube )

38
Q

what is CPAP? ( Continuous Positive Airway Pressure )

A

This mode basically delivery constant airway pressure to the patient throughout respiratory cycle and PIF, RR and TV. It depends on patient breath, meaning patient must/can breath a bit to use this mode

39
Q

What is BPAP? ( Bilevel Positive Airway Pressure )

A

This mode delivery has 2 levels of airway pressure, one high during inspiration, and 1 low during expiration. It is to prevent alveolar from getting damage

Medical Instrumentation (MI) (6 decks)

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