Cardiopulmonary Anatomy & Physiology
7th Edition
ISBN: 9781337794909
Author: Des Jardins, Terry.
Publisher: Cengage Learning,
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Textbook Question
Chapter 2, Problem 18RQ
If the radius of a bronchial airway, which has a driving pressure of 2 mm Hg, is reduced by 16 percent of its original size, what will be the new driving pressure required to maintain the same gas flow through the bronchial airway?
A. 4 mm Hg
B. 8 mm Hg
C. 12 mm Hg
D. 16 mm Hg
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Chapter 2 Solutions
Cardiopulmonary Anatomy & Physiology
Ch. 2 - The average compliance of the lungs and chest wall...Ch. 2 - Normally, the airway resistance in the...Ch. 2 - 3. In the normal individual in the upright...Ch. 2 - Prob. 4RQCh. 2 - 5. When arranged for flow Poiseuille’s law states...Ch. 2 - 6. During a normal exhalation, the
1....Ch. 2 - At rest, the normal pleural pressure change during...Ch. 2 - Prob. 8RQCh. 2 - Prob. 9RQCh. 2 - Assuming that pressure remains constant, if the...
Ch. 2 - Prob. 11RQCh. 2 - Prob. 12RQCh. 2 - 13. If alveolar unit A has one-half the compliance...Ch. 2 - 14. If a patient weighs 175 pounds and has a tidal...Ch. 2 - 15. Lung compliance study
Part /: If a patient...Ch. 2 - 16. If a patient produces a flow rate of 5 L/sec...Ch. 2 - Prob. 17RQCh. 2 - If the radius of a bronchial airway, which has a...Ch. 2 - In the healthy lung, when the alveolus decreases...Ch. 2 - 20. At end-expiration, is
A. 0 mm Hg.
B. 2 mm...Ch. 2 - Case 1 Because this patient's ribs were broken on...Ch. 2 - Case 1
2. As a result of the previously described...Ch. 2 - Case 1 The pathophysiologic process that developed...Ch. 2 - Case 2 As a result of the hyperinflation, the...Ch. 2 - Case 2 Because of the lung hyperinflation...Ch. 2 - Prob. 2CAQ3Ch. 2 - Case 2 As the airway resistance increased in this...Ch. 2 - Case 2
5. A product of the time constants is the...
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- If an individual fully inhales to a total lung capacity of 4.5 L at sea level (760 mm Hg) and dives to a depth of 66 feet, the lungs will be compressed to about A. 1.0 L B. 1.5 L C. 2.0 L D. 2.5 Larrow_forwardSuppression of the peripheral chemoreceptors begins when the Po2 falls below A. 50 mm Hg B. 40 mm Hg C. 30 mm Hg D. 20 mm Hgarrow_forwardThe average compliance of the lungs and chest wall combined is 0.1 L/cm H2O. 0.2 L/cm H2O 0.3 L/cm H2O 0.4 L/cm H2Oarrow_forward
- The peripheral chemoreceptors are significantly activated when the PO2 decreases to about A. 75 mm Hg B. 70 mm Hg C. 65 mm Hg D. 60 mm Hgarrow_forward4. The number of alveoli continues to increase until about A. 6 years of age B. 8 years of age C. 10 years of age D. 12 years of agearrow_forwardWhich of the following forced expiratory measurements reflects the status of medium-sized to small-sized airways? A. FEF200-1200 B. PEFR C. MVV D. FEF25%-75%arrow_forward
- If a patient is receiving an FIO2 of 0.60 on a day when the barometric pressure is 725 mm Hg, and if the Paco2 is 50 mm Hg, what is the patients alveolar oxygen tension (PAo2)? A. 177 mm Hg B. 233 mm Hg C. 344 mm Hg D. 415 mm Hgarrow_forwardThe inferior portion of the larynx is composed of the A. thyroid cartilage. B. hyoid bone. C. glottis. D. cricoid cartilage.arrow_forwardThe mean intraluminal pressure in the pulmonary capillaries is A. 5 mm Hg B. 10 mm Hg C. 15 mm Hg D. 20 mm Hgarrow_forward
- Assuming that pressure remains constant, if the radius of a bronchial airway through which gas glows at a rate of 400 L/min is reduced to one-half of its original size, the flow through the bronchial airway would change to A. 10 L/min. B. 25 L/min. C. 100 L/min. D. 200 L/min.arrow_forwardWhich is the order of airflow during inhalation? a. nasal cavity, trachea, larynx, bronchi, bronchioles, alveoli b. nasal cavity, larynx, trachea, bronchi, bronchioles, alveoli c. nasal cavity, larynx, trachea, bronchioles, bronchi, alveoli d. nasal cavity, trachea, larynx, bronchi, bronchioles, alveoliarrow_forwardThe total lung capacity is calculated using which of the following formulas? residual volume + tidal volume + inspiratory reserve volume residual volume + expiratory reserve volume + inspiratory reserve volume expiratory reserve volume + tidal volume + inspiratory reserve volume residual volume + expiratory reserve volume + tidal volume + inspiratory reserve volumearrow_forward
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