Mechanical Ventilator Terminology and Classification

Mechanical Ventilator Terminology and Classification
Order 5887384
Mechanical Ventilator Terminology and Classification
1. Provides the mechanical force that produces the flow of gas
necessary for delivery of tidal volumes.
353. Makes use of a subatmospheric pressure applied to the
thorax to deliver tidal volumes.
2. A physical parameter that cannot be exceeded, but is not
the primary cycling mechanism.
355. Makes use of a supra-atmospheric pressure applied to the
airway to deliver tidal volumes.
356. Physical energy source that provides the power for ventilator function.
110 / Respiratory Therapy Examination Review
Questions 357-360: For each lettered gas flow pattern, select the
correct numbered pressure pattern.
Square wave
Decelerating flow
Sine wave VOR Accelerating flow
357. Sigmoidal
358. Nonlinear
359. Rectilinear
360. Parabalic
Mechanical Ventilator Terminology and Classification
DIRECTIONS (Questions 361-372): Each of the questions or
incomplete statements below is followed by four suggested answers
or completions. Select the one that is best in each case.
361. Which of the following are available powering mechanisms?
A. Electric
B. Pneumatic
C. Combined electric/pneumatic
D. All of the above
362. The ability of a ventilator to maintain a consistent gas flow
pattern is dependent on
1. the driving mechanism of the ventilator
2. the power mechanism of the ventilator
3. the total patient resistance to ventilation
4. the number of circuits
1. only
2. and 3.
1. and 3. SPOR 2. and 4.
363.
364.
365.
366.
367.
Mechanical Ventilator Terminology and Classification
Equipment and Procedures / 111
A ventilator is considered a flow generator if the maximum
pressure generated by the driving force is at least how many
times the highest system pressure developed during gas delivery?
Ave
BIe3
(Gs os)
Daas
A ventilator that does meet the criteria as stated above is
A. volume generator
B. pressure generator
C. flow generator
D. time generator
Which of the following is a cycling parameter of mechanical
ventilators?
1. Volume
2. Pressure
3. Time
4. Flow
At te ands.
B. 1. only
Crore? and.3:
D. All of the above
When a primary cycling parameter has been attained,
which of the following is INCORRECT?
A. An audio alarm will alarm
B. A visual alarm will not alarm
C. Inspiration will terminate
D. None of the above
Which of the following are pressure-cycled ventilators?
Bird Mark 7 and 8
Bennett PR series
Veriflo CV 2000
DAMS Both A. and B.
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