Question 1

Using the figure,what amount of oxygen is necessary to be bled into a Pulmonetic Systems LTV 1000,with a minute volume of 10 L/min,to achieve a fractional inspired oxygen level of 70%?

Accepted Answer

Locate the minute volume of 10 L/min on the right side of the chart.Follow the 10 L/min line down until it intersects with the 0.70 vertical line.Follow the vertical line left to read the input oxygen flow (L/min).

Question 2

Which of the following statements concerning the Pulmonetic Systems LTV 1000 ventilator is true?

Accepted Answer

In addition to flow triggering,there is a backup pressure-sensing trigger that pressure triggers a breath when the airway pressure drops below -3 cm H₂O.

Question 3

The fractional inspired oxygen on a Dräger Carinahome ventilator is determined by which of the following?

Accepted Answer

The Dräger Carinahome ventilator has an oxygen low-pressure input port,where supplemental oxygen can be bled in to a maximum of 10 L/min.The Carina has two optional valves that dictate the oxygen percentage delivered.

Question 4

During the transport of a patient being ventilated with a Newport HT50 ventilator,the low airway pressure/apnea indicator begins to blink red and the "check proximal line" alarm is triggered. What is the most appropriate action?

Accepted Answer

The "check proximal line" alarm occurs during inspiration when the proximal pressure measured is significantly different from the internal backup pressure sensor measurement taken inside the ventilator.In addition to the message,the low airway pressure/apnea indicator blinks red.Causes include disconnections,kinking of the circuit,and a water-filled proximal sensor line.

Question 5

On the Smiths Medical Pneupac ventiPAC ventilator,which of the following would provide a 15 breaths/min respiratory rate?

Accepted Answer

Respiratory rate is set by manipulation of the inspiratory and expiratory time control knobs.Inspiratory time is adjustable from 0.5 to 2 seconds.Expiratory time is adjustable from 0.6 to 6 seconds.

Question 6

During volume-targeted assist/control with a Pulmonetic Systems LTV 1000,the tidal volume is set at 800 mL,and inspiratory time is set at 1 s.Inspiration will end when which of the following is reached?

Accepted Answer

During volume-targeted breaths,the peak flow at the beginning of inspiration is calculated by the ventilator so that the tidal volume can be delivered during the set inspiratory time,and inspiration ends when flow decreases to 50% of the peak or 10 L/min,whichever is highest.The calculated flow rate is 0.8 L ÷ 1 s,or 0.8 L ÷ 1/60 of a second.Flow rate = 48 L/min; 50% of 48 L/min is 24 L/min.

Question 7

Which of the following situations is most likely to activate the occlusion alarm on the Newport Medical Instruments HT50 ventilator?

Accepted Answer

The occlusion alarm activates when the airway pressure remains +15 cm H₂O above the positive end-expiratory pressure setting for 3 seconds after exhalation has begun or at the end of exhalation,whichever comes first.This could occur when a patient bites the endotracheal tube because biting the tube can keep the pressure elevated for long periods.

Question 8

Which of the following is a transport ventilator that can deliver high-frequency ventilation?

Accepted Answer

The Bronchotron TXP is a high-frequency flow-interrupter ventilator capable of frequencies of 700 breaths/min.

Question 9

Oxygen can be added to the Dräger Carinahome ventilator by which of the following methods?

Accepted Answer

The Carina has an oxygen low-pressure input port,where supplemental oxygen can be bled in to a maximum of 10 L/min.

Question 10

The transport ventilator that can be used on newborns is the:

Accepted Answer

The Bio-Med Crossvent 4 and 2+ can be used for neonatal ventilation.

Question 11

The inspiratory-to-expiratory ratio would be 1:1.5 for _____ breaths/min on the Percussionaire Bronchotron TXP Ventilator.

Accepted Answer

A rate of 250 to 400 breaths/min would have an automatic inspiratory-to-expiratory ratio of 1:1.5.

Question 12

Which of the following statements concerning the Newport HT50 ventilator is true?

Accepted Answer

The internal battery has 10 hours of battery life when fully charged.This ventilator does not require external gas sources to perform all of its operations properly.It can be used on patients who weigh 10 kg or more,and the "battery empty" message activates when there are 30 minutes of battery life left.

Question 13

The apnea alarm on the Newport HT50 ventilator is triggered after how much time?

Accepted Answer

When a patient breath goes undetected for 30 seconds,an apnea alarm occurs.

Question 14

Which transport ventilator does not require an external blender to regulate precisely the fractional inspired oxygen?

Accepted Answer

The Eagle 754 has a built-in compressor with a blender.

Question 15

What inspiratory flow and inspiratory time would produce a tidal volume of 750 mL on the Smiths Medical Pneupac ventiPAC ventilator?
Inspiratory flow Inspiratory time
1)0.33 L/s 1 s
2)0.5 L/s 1.5 s
3)0.75 L/s 1 s
4)0.45 L/s 2 s

Accepted Answer

Tidal volume (L)= Inspiratory flow (L/s)* Inspiratory time (s).0.5 L/s * 1.5 s = 0.75 L,or 750 mL,and 0.75 L/s * 1 s = 0.75 L,or 750 mL.

Question 16

Which of the following is a magnetic resonance imaging-compatible transport ventilator?

Accepted Answer

The Bio-Med MVP-10 has a magnetic resonance imaging-compatible version.

Question 17

What is the tidal volume delivered when the Newport HT50 is set to deliver volume-controlled ventilation with an inspiratory time of 0.75 second and a flow of 0.83 L/s?

Accepted Answer

Tidal volume = Inspiratory time (s)* Flow (L/s)= 0.75 s * 0.83 L/min = 623 mL.

Question 18

The large external battery that is used with the Pulmonetic Systems LTV 1000 ventilator lasts approximately ____ hours when fully charged.

Accepted Answer

The fully charged large external battery can provide up to approximately 8 hours of power.

Question 19

Which of the following is a transport ventilator that operates normally up to an altitude of 15,000 feet?

Accepted Answer

The pNeuton operates normally up to an altitude of 15,000 feet.Altitude does not affect pressure settings.

Question 20

The alarm sound on the Pulmonetic Systems LTV 1000 ventilator is generated out of which of the following structures in the figure?

Accepted Answer

The right side of the Pulmonetic Systems LTV 1000 contains the following: (1)a small opening for the alarm sound that should never be covered,(2)a 22-mm connector for the main inspiratory flow line,(3)an external connection for the exhalation valve,and (4)two flow-transducer connectors that attach to the patient Y-adapter.

Quiz 15: Transport, Home Care, and Noninvasive Ventilatory Devices