Classification of Mechanical Ventilators
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| Compressor | show 🗑
|
||||
| Controller | show 🗑
|
||||
| Cycle | show 🗑
|
||||
| flow triggered | show 🗑
|
||||
| show | minute computer that is designed to perform specific functions
🗑
|
||||
| show | operation of a ventilator with pressurized gas as a power source
🗑
|
||||
| show | inititiation of a mechanical breath based on the drop in airway pressure that occurs at the beginning of a spontaneous inspiratory effort
🗑
|
||||
| reducing valve | show 🗑
|
||||
| show | a feedback system that typically consists of a sensing elemnt, an amplifier, and a servo motor, used in the automatic control of the mechanical device of a ventilator
🗑
|
||||
| show | a graphic representation of flow and time that has a horizontal “S” appearance
🗑
|
||||
| show | a valve controlled by an electronic switching device that is used to regulate the specific functions of a ventilator
🗑
|
||||
| time triggered | show 🗑
|
||||
| show | Engstrom 100
🗑
|
||||
| The Chatburn system classifies mechanical ventilators based on what? | show 🗑
|
||||
| The pressure required to deliver the tidal volume is referred to as what? | show 🗑
|
||||
| The "elastic load" is proportional to _______ and inversely proportional to ______ | show 🗑
|
||||
| show | Raw; inspiratory flow
🗑
|
||||
| show | Muscle pressure + Ventilator pressure= [Volume/Compliance] + (Resistance x Flow)
🗑
|
||||
| show | a change in volume divided by a change in pressure
🗑
|
||||
| What is the definition of Flow? | show 🗑
|
||||
| show | the force that must be overcome to move gas through the conducting airways
🗑
|
||||
| show | Poiseuille's law
🗑
|
||||
| Mechanical ventilators may be classified based on these 7 categories | show 🗑
|
||||
| show | the power source that is used to provide the energy required to support the patients ventilation
🗑
|
||||
| 3 types of input power for mechanical ventilators | show 🗑
|
||||
| show | pneumatically powered
🗑
|
||||
| show | Bennett PR-2, Bird Mark 7, Percussionaire IPV, Monaghan 225/SIMV, and Percussionaire VDR
🗑
|
||||
| show | 120 V 60 Hz alternating current (AC) or 12 V direct current (DC)
🗑
|
||||
| show | Emerson 3-MV, Puritan-Bennett LP-10 and LP-20, and the Bear medical systems Bear 33
🗑
|
||||
| 3 examples of 3rd generation combined pneumatic and electrically powered ventilators | show 🗑
|
||||
| What is the drive mechanism? | show 🗑
|
||||
| What 2 things on newer ventilators allows them to produce a variety of user-selected inspiratory flow or pressure patterns? | show 🗑
|
||||
| 4 kinds of drive mechanisms | show 🗑
|
||||
| show | electrically powered
🗑
|
||||
| show | rotary-driven and linear driven
🗑
|
||||
| 3 ways a Bellows drive mechanism may be compressed | show 🗑
|
||||
| An example of a ventilator that uses a reducing valve drive mechanism | show 🗑
|
||||
| Multiprocessor controlled pneumatic mechanisms use | show 🗑
|
||||
| show | pneumatic
🗑
|
||||
| show | the system that governs or controls the ventilator drive mechanism or output control valve
🗑
|
||||
| Classifications of control circuits | show 🗑
|
||||
| show | the desired output is selected and the ventilator achieves the desired output without any further input from the clinician or ventilator itself
🗑
|
||||
| show | ventilator measures a specific parameter or variable (flow, pressure or volume) continuously, and the input is constantly adjusted to match the desired output selected
🗑
|
||||
| show | servo controlled
🗑
|
||||
| show | mechanical
🗑
|
||||
| show | mechanical
🗑
|
||||
| Pneumatic devices used as control circuits include | show 🗑
|
||||
| show | IPPB, Percussionaire IPV and VDR
🗑
|
||||
| What is fluidics? | show 🗑
|
||||
| How to fluidic elements control the direction of flow and perform logic functions? | show 🗑
|
||||
| show | Coanda
🗑
|
||||
| show | Monaghan 225
🗑
|
||||
| This type of control circuits use simple switches to control the drive mechanism? | show 🗑
|
||||
| This ventilator uses electric control circuits to control 2 microswitches to control inspiratory and expiratory time | show 🗑
|
||||
| show | resistors, diodes, transistors, integrated circuits, and microprocessors
🗑
|
||||
| show | pressure, volume, flow, and time
🗑
|
||||
| show | positive(when airway pressure rises above baseline) and negative(body surface pressure below baseline)
🗑
|
||||
| show | transrespiratory pressure
🗑
|
||||
| A positive pressure ventilator requires the use of what? | show 🗑
|
||||
| This type of control variable is usually unaffected by changes in the patients compliance or resistance | show 🗑
|
||||
| show | volume must be measured and used as a feedback signal to control the output (volume) delivered
🗑
|
||||
| What type of controller allows pressure to vary with changes in compliance and resistance while volume delivery remains constant? | show 🗑
|
||||
| Volume controllers can measure volume by the ___ or ____ that serves as the ventilators drive mechanism | show 🗑
|
||||
| show | Bennett MA-1 and MA-2+2 and the Emerson 3-MV
🗑
|
||||
| Which type of controllers allow pressure to vary with changes in the patients compliance and resistance while directly measuring and controlling flow? | show 🗑
|
||||
| 4 things that measure flow in flow controlled ventilators | show 🗑
|
||||
| show | inspiratory and expiratory time
🗑
|
||||
| show | time controlled
🗑
|
||||
| What are the 4 phases of ventilator supported breaths? | show 🗑
|
||||
| When a variable (pressure, volume, flow, and time) is observed during a particular phase it is called what? | show 🗑
|
||||
| show | variable that determines the start of inspiration
🗑
|
||||
| show | time triggered, pressure triggered, or flow triggered
🗑
|
||||
| The amount of negative pressure below a patients baseline airway pressure (or end-expiratory pressure), a patient must generate to trigger the ventilator into inspiration is called? | show 🗑
|
||||
| show | -1 to -5 cm H2o
🗑
|
||||
| show | decreasing (it takes more patient effort to trigger inspiration)
🗑
|
||||
| show | Flow triggered
🗑
|
||||
| 3 examples of ventilators than can be flow triggered | show 🗑
|
||||
| One infant ventilator (Sechrist IV-200) uses ___ _____ to initiate a ventilator supported breath | show 🗑
|
||||
| show | when 1 or more of the variables (pressure, flow, or volume) is not allowed to rise above a preset value during inspiratory time
🗑
|
||||
| 4 types of cycle variables | show 🗑
|
||||
| The variable that is controlled during the expiratory phase or expiratory time is called the? | show 🗑
|
||||
| show | pressure
🗑
|
||||
| Application of PEEP and CPAP are used to do what 3 things? | show 🗑
|
||||
| show | ambient pressure
🗑
|
||||
| What pressures, when applied above baseline pressure during exhalation, maintain the lungs in a partially inflated state? | show 🗑
|
||||
| show | patterns of variables that are controlled by the ventilator during the ventilatory cycle
🗑
|
||||
| show | graphical representations of the control or phase variables in relation to time
🗑
|
||||
| show | pressure, volume, flow
🗑
|
||||
| The ____ determines the shape of the control variable, whereas the other 2 depend on what? | show 🗑
|
||||
| Waveforms can assist clinician in detecting inadvertent _____, the patients _____ _____, resistance, and compliance | show 🗑
|
||||
| 4 types of pressure waveforms | show 🗑
|
||||
| This type pf waveform is characterized by a near instant rise to a peak pressure value that is held to the start of exhalation. During exhalation pressure rapidly drops to baseline | show 🗑
|
||||
| show | exponential
🗑
|
||||
| This type of waveform is produced by ventilators having a rotary-driven piston drive mechanism | show 🗑
|
||||
| 2 types of volume waveforms | show 🗑
|
||||
| show | ascending ramp
🗑
|
||||
| show | sinusoidal
🗑
|
||||
| show | Emerson 3-MV, Respironics PLV-100, BEAR 33, Puritan- Bennett LP-10 and LP-20
🗑
|
||||
| show | rectangular(constant), ascending ramp, descending ramp, and sinusoidal
🗑
|
||||
| show | rectangular flow waveform
🗑
|
||||
| If flow rises as the breath is delivered, this type of flow waveform is seen | show 🗑
|
||||
| show | descending ramp
🗑
|
||||
| 3 types of alarm systems on mechanical ventilatiors | show 🗑
|
||||
| Most battery backup alarms are powered by what? | show 🗑
|
||||
| show | pneumatic reed alarms
🗑
|
||||
| Control circuit alarms alert the clinician to what? | show 🗑
|
||||
| 6 subdivisions of output alarms | show 🗑
|
||||
| This type of output alarm includes high/low peak and mean and baseline airway pressures | show 🗑
|
||||
| This type of output alarm includes high/low exhaled tidal volumes for both vent-supported breathing and spontansous breathing | show 🗑
|
||||
| This type of output alarm is limited to exhaled minute volume | show 🗑
|
||||
| show | Time
🗑
|
||||
| Inspiratory and expiratory time alarms may alert the clinician to what? | show 🗑
|
||||
| What do inspired gas alarms alert the clinician to? | show 🗑
|
||||
| What can be monitored by the expiratory gas alarm? | show 🗑
|
||||
| The exhaled gas monitoring system can assist the clinician in determining what 2 things? | show 🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
Dibsy