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

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?

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?

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

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

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