Cardiopulmonary Anatomy & Physiology
7th Edition
ISBN: 9781337794909
Author: Des Jardins, Terry.
Publisher: Cengage Learning,
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Textbook Question
Chapter 2, Problem 7RQ
At rest, the normal pleural pressure change during quiet breathing is about
A. 0-2 mm Hg.
B. 2-4 mm Hg.
C. 4-6 mm Hg.
D. 6-8 mm Hg.
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Given an alveolar pressure of 760 mm, an intrapleural pressure of 755 Hg and a tidal volume of 450 ml, what would be the lung compliance?
a. 100 ml/mm Hg
b. 120 ml/mm Hg
c. 90 ml/mm Hg
d. 150 ml/mm Hg
e. None of these
The p02 in the pulmonary veins is approximately:
A. 40mmHg B. 46mmHg
C. 100mmHg
If a patient is receiving an Flo2 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 patient's alveolar oxygen tension (PAo2)? A. 177 mm Hg C. 344 mm Hg B. 233 mm Hg D. 415 mm Hg
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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- Suppression 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 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_forwardIf 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_forward
- If the pressure in the pulmonary artery is 34 mm Hg and the pressure in the left atrium is 9 mm Hg, what is the driving pressure? A. 9 mm Hg B. 17 mm Hg C. 25 mm Hg D. 34 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_forwardAt sea level, the alveolar water vapor pressure in normally about A. 0.2 mm Hg B. 47 mm Hg C. 0.0 mm Hg D. 40 mm Hgarrow_forward
- The 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_forwardCase 1 As a result of the severe left heart failure and increased pulmonary blood pressure in the case, fluid moved out of the pulmonary capillaries and into the extracapillary spaces. The pathologic process caused the thickness of the alveolar-capillary membrane to______arrow_forwardIf the pressure in the pulmonary artery is 34 mm Hg and the pressure in the left atrium is 9 mm Hg, what is the driving pressure?A. 9 mm HgB. 17 mm HgC. 25 mm HgD. 34 mm Hgarrow_forward
- 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 Hgarrow_forwardIf 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 patient’s alveolar oxygen tension (PaO2 )?A. 177 mm Hg C. 344 mm HgB. 233 mm Hg D. 415 mm Hgarrow_forwardAssuming a normal barometric pressure of 760 mm Hg, if the percentage of oxygen is 0.4, the partial pressure of oxygen would be: A. 159 mm Hg C. 304 mm Hg B. 215 mm Hg D. 560 mm Hgarrow_forward
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