TESTBANKSPROF
Test Bank for Pilbeam’s Mechanical Ventilation-Physiological and Clinical
Applications 7th Edition
by Cairo
All Chapters (1-23) | Q&As Verified | Grade A+ Assured
ISBN 9780323551274
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Chapter 1; Basic Terms and Concepts of Mechanical Ventilation
MULTIPLE CHOICE
1. The body’s mechanism for conducting air in and out of the lungs is
known as which of the following?
a. External respiration
b. Internal respiration
c. Spontaneous ventilation
d. Mechanical ventilation
CORRECT ANSWER: C
The conduction of air in and out of the body is known as ventilation.
Since the question asks for the body’s mechanism, this would be
spontaneous ventilation. External respiration involves the exchange
of oxygen (O2) and carbon dioxide (CO2) between the alveoli and the
pulmonary capillaries. Internal respiration occurs at the cellular level
and involves movement of oxygen from the systemic blood into the
cells.
DIF: 1 REF: pg. 3
2. Which of the following are involved in external respiration?
a. Red blood cells and body cells
b. Scalenes and trapezius
muscles
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c. Alveoli and pulmonary
capillaries
d. External oblique and
transverse abdominal muscles
CORRECT ANSWER: C
External respiration involves the exchange of oxygen and carbon
dioxide (CO2) between the alveoli and the pulmonary capillaries.
Internal respiration occurs at the cellular level and involves
movement of oxygen from the systemic blood into the cells.
Scalene and trapezius muscles are accessory muscles of inspiration.
External oblique and transverse abdominal muscles are accessory
muscles of expiration.
DIF: 1 REF: pg. 3
3. The graph that shows intrapleural pressure changes during
normal spontaneous breathing is depicted by which of the
following?
a.
b.
c.
d.
CORRECT ANSWER: B
During spontaneous breathing the intrapleural pressure drops
from about -5 cm H2O at end-expiration to about -10 cm H2O at
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end-inspiration. The graph depicted for answer B shows that
change from -5 cm H2O to -10 cm H2O.
DIF: 1 REF: pg. 4
4. During spontaneous inspiration alveolar pressure (PA) is about:
.
a. - 1 cm H2O
b. + 1 cm H2O
c. 0 cm H2O
d. 5 cm H2O
CORRECT ANSWER: A
-1 cm H2O is the lowest alveolar pressure will become during normal
spontaneous ventilation. During the exhalation of a normal
spontaneous breath the alveolar pressure will become +1 cm H2O.
DIF: 1 REF: pg. 3
5. The pressure required to maintain alveolar inflation is known as
which of the following?
a. Transairway pressure (PTA )
b. Transthoracic pressure (PTT)
c. Transrespiratory pressure (PTR)
d. Transpulmonary pressure (PL)
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