On a mechanical ventilator, pressure triggering is usually set within which of the following ...

jihuygu

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7 years ago

On a mechanical ventilator, pressure triggering is usually set within which of the following ...

On a mechanical ventilator, pressure triggering is usually set within which of the following rang-es?

a. 0.5 to 1.5 cm H2O c. 0.5 to 2.0 cm H2O
b. 2.0 to 0.5 cm H2O d. 1.0 to 3.0 cm H2O

Q. 2 If the base flow is 8 L/min and the flow-trigger setting is 3 L/min, at what flow rate would the ventilator be triggered?

a. 3 L/min c. 8 L/min
b. 5 L/min d. 11 L/min

Q. 3 With a baseline pressure setting of 6 cm H2O and a sensitivity setting of 1.5 cm H2O, inspiration will begin at _____ cm H2O.

a. 1.5 c. +1.5
b. 4.5 d. +4.5

Q. 4 Which two of the following patient triggers are most common? 1. Flow 2. Neural 3. Volume 4. Pressure

a. 1 and 2 c. 2 and 3
b. 1 and 4 d. 3 and 4

Q. 5 The pressure maintained at the airway during exhalation is known as which of the following?

a. Baseline c. Sensitivity
b. Proximal d. Mean airway

Q. 6 Which of the following variables ends the inspiratory phase?

a. Cycle c. Trigger
b. Limit d. Sensitivity

Q. 7 Which of the following variables begins a mandatory breath?

a. Flow c. Volume
b. Time d. Pressure

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eoinvrvrikme

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7 years ago

(Answer to Q. 1) ANS: A
Pressure triggering usually is set at 0.5 to 1.5 cm H2O. This means that the trigger will occur at 0.5 to 1.5 cm H2O below the baseline pressure.

(Answer to Q. 2) ANS: B
The ventilator will begin inspiration when the expiratory flow is measured at 5 L/min (8 L/min 3 L/min = 5 L/min).

(Answer to Q. 3) ANS: D
The actual pressure at which the breath will be triggered is +4.5 cm H2O (6 cm H2O 1.5 cm H2O = 4.5 cm H2O).

(Answer to Q. 4) ANS: B
Pressure and flow are the most common variables used for patient triggering. However, volume triggering and neural triggering also can be used.

(Answer to Q. 5) ANS: A
Baseline pressure is the pressure maintained at the airway during exhalation and the pressure from which inspiration begins. Proximal pressure is the pressure measured near the Y-connector of the ventilator circuit. Sensitivity is the control set by the operator that determines the amount of work the patient must do to trigger a breath. The mean airway pressure is the average pressure occurring in the airway during a complete respiratory cycle.

(Answer to Q. 6) ANS: A
The cycle variable ends the inspiratory phase and begins exhalation.

(Answer to Q. 7) ANS: B
Time-triggering the ventilator enables control of the beginning of inspiration based on the set mandatory rate. The breath is mandatory.

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jihuygu Author

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7 years ago

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eoinvrvrikme

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7 years ago

What makes it awesome is that you posted, thanks for trusting us

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