Chapter 13: Mechanical Ventilators: General-Use Devices

Chapter 13: Mechanical Ventilators: General-Use Devices

 

Complete Chapter Questions With Answers

 

Sample Questions Are Posted Below

 

MULTIPLE CHOICE

 

1. Which of the following is (are) used in the measurement of tidal volume on a CareFusion AVEA ventilator?
2. Variable-orifice pneumotachometer
3. Pressure differential pneumotachometer
4. Ultrasonic flow sensor
5. Hot wire flow sensing device

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

 

 

ANS:  B

Proximal airway flow sensing with either a variable-orifice pneumotachometer or hot wire flow sensing technology is available for measuring tidal volume at the patient Y connector.

 

PTS:   1                    REF:   Page 429

 

2. The Carefusion Avea ventilator is being used during transport; the electrical power source in the ambulance fails. How long will the internal power source allow the ventilator to function?

a.	About 10 minutes	c.	About 30 minutes
b.	About 20 minutes	d.	About 40 minutes

 

 

ANS:  C

The internal battery provides about 30 minutes of power when both the ventilator and the compressor are running.

 

PTS:   1                    REF:   Page 420

 

3. What mixture of helium:oxygen can be administered with the CareFusion AVEA?

a.	60% helium:40% oxygen	c.	80% helium:20% oxygen
b.	70% helium:30% oxygen	d.	90% helium:10% oxygen

 

 

ANS:  C

The ventilator may be powered with an 80/20 mixture of helium and oxygen.

 

PTS:   1                    REF:   Page 422, Table 13-1

 

4. Which of the following pressures can be monitored with the CareFusion AVEA?
5. Esophageal pressure
6. Tracheal pressure
7. Proximal airway pressure

a.	3 only	c.	2 and 3
b.	1 and 2	d.	1, 2, and 3

 

 

ANS:  D

Patient monitoring from the Avea includes esophageal, tracheal, and proximal airway pressure.

 

PTS:   1                    REF:   Page 427

 

5. What modes of ventilation on the CareFusion AVEA provide apnea backup ventilation?
6. Volume assist/control
7. Volume synchronized intermittent mandatory ventilation
8. Airway pressure release ventilation/biphasic
9. Continuous positive airway pressure/pressure support ventilation

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

 

 

ANS:  D

Apnea backup ventilation is available in all modes in which spontaneous ventilation is available (synchronized intermittent mandatory ventilation, airway pressure release ventilation/biphasic, and continuous positive airway pressure/pressure support ventilation modes).

 

PTS:   1                    REF:   Page 427