Test Bank - Pilbeam’s Mechanical Ventilation-Physiological and Clinical Applications, 7th Edition (Cairo, 2020), Chapter 1-23 | All Chapters

,Chapter 1; Basic Terms and Concepts of Mechanical Ventilatio
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n Test Bank
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MULTIPLE CHOICE x@




1. The body’s mechanism for conducting air in and out of the lun
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gs is known as which of the following?
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a. External respiration x@




b. Internal respiration x@




c. Spontaneous ventilation x@




d. Mechanical ventilation x@




ANS: C x@




The conduction of air in and out of the body is known as ventil
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ation. Since the question asks for the body’s mechanism, this w
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ould be spontaneous ventilation. External respiration involves t
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he exchange of oxygen (O2) and carbon dioxide (CO2) between t
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he alveoli and the pulmonary capillaries. Internal respiration oc
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curs at the cellular level and involves movement of oxygen fro
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m the systemic blood into the cells.
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DIF: 1 REF: pg. 3 x @ x@




2. Which of the following are involved in external respiration?
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a. Red blood cells and body cells
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,b. Scalenes and trapeziusx@ x@




muscles
c. Alveoli and pulmonary
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capillaries
d. External oblique and x@ x@




transverse abdominal muscles x @ x @




ANS: C x@




External respiration involves the exchange of oxygen and carbo
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n dioxide (CO2) between the alveoli and the pulmonary capillari
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es. Internal respiration occurs at the cellular level and involves
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@ movement of oxygen from the systemic blood into the cells.
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Scalene and trapezius muscles are accessory muscles of inspirat
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ion. External oblique and transverse abdominal muscles are acc
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essory muscles of expiration.
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, DIF: 1 REF: pg. 3 x @ x@




3. The graph that shows intrapleural pressure changes during
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x@ normal spontaneous breathing is depicted by which of th
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e following?
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a.
b.
c.
d.


ANS: B x@




During spontaneous breathing the intrapleural pressure drops f
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rom about -5 cm H2O at end-expiration to about -
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10 cm H2O at end-
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inspiration. The graph depicted for answer B shows that chan
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ge from -5 cm H2O to -10 cm H2O.
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DIF: 1 REF: pg. 4 x @ x@




4. During spontaneous inspiration alveolar pressure (PA) is about:
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.
a. - 1 cm H2O
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b. + 1 cm H2O
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c. 0 cm H2O
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