Cardiopulmonary Anatomy & Physiology
7th Edition
ISBN: 9781337794909
Author: Des Jardins, Terry.
Publisher: Cengage Learning,
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 6, Problem 3RQ
Summary Introduction
Introduction:
Pulmonary shunting is a condition in which alveoli are perfused with the normal amount of blood but the oxygen does not reach the alveoli of the lungs, and hence, enough ventilation do not occur. This means the ventilation to perfusion ratio is zero. Pulmonary shunting could be due to absolute shunts (anatomical) or pathological shunts (congenital defects, pulmonary oedema etc.). This leads to venous admixture i.e. non-oxygenated blood gets shunted distal to alveoli and mixes with the oxygenated blood.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionChapter 6 Solutions
Cardiopulmonary Anatomy & Physiology
Ch. 6 - Prob. 1RQCh. 6 - Prob. 2RQCh. 6 - Prob. 3RQCh. 6 - Prob. 4RQCh. 6 - The normal calculated anatomic shunt is about A....Ch. 6 - 6. In which of the following types of hypoxia is...Ch. 6 - 7. If a patient normally has a 12 g/dL Hb,...Ch. 6 - Prob. 8RQCh. 6 - Assuming everything else remains the same, when an...Ch. 6 - 10. Under normal conditions, the is about
A. 10...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- 6. During a normal exhalation, the 1. intra-alveolar pressure is greater than the atmospheric pressure. 2. pleural pressure is less than the atmospheric pressure. 3. intra-alveolar pressure is in equilibrium with the atmospheric pressure. 4. pleural pressure progressiverly decreases. A. 1 only B. 4 only C. 1 and 2 only D. 3 and 4 onlyarrow_forward3. During acute alveolar hyperventilation, the blood 1. increases 2. decreases 3. increases 4. pH decreases A. 2 only B. 4 only C. 1 and 3 only D. 2 and 4 onlyarrow_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_forward
- 3. In the normal individual in the upright position 1. the negative pleural pressure is greater (i. e., more negative) in the upper lung regions. 2. the alveoli in the lower lung regions are larger than the alveoli in the upper lung regions. 3. ventilation is more effective in the lower lung regions. 4. the pleural pressure is always below atmospheric pressure during a normal ventilator cycle. A. 1 and 2 only B. 2 and 3 only C. 2,3 and 4 only D. 1,3, and 4 onlyarrow_forward1. During acute alveolar hypoventilation, the blood 1. increases 2. pH increases 3. increases 4. increases A. 2 only B. 4 only C. 2 and 3 only D. 1,3, and 4 onlyarrow_forwardMost of the lung function indices reach their maximum levels betwee A. 5-10 years of age B. 10-15 years of age C. 15-20 years of age D. 20-25 years of agearrow_forward
- Normally, the airway resistance in the tracheobronchial tree is about A. 0.5-1.5 cm H2O/L/sec. B. 1.0-2.0 cm H2O/L/sec. C. 2.0-3.0 cm H2O/L/sec. D. 3.0-4.0 cm H2O/L/sec.arrow_forward3. At birth, the number of alveoli represents; about how much of the total adult gas exchange units? A. 10 percent B. 20 percent C. 30 percent D. 40 percentarrow_forward3. With advancing age, the 1. Lung compliance decreases 2. Chest wall compliance increases 3. Lung compliance increases 4. Chest wall compliance decreases A. 2 only B. 3 only C. 1 and 2 only D. 3 and 4 onlyarrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- Cardiopulmonary Anatomy & PhysiologyBiologyISBN:9781337794909Author:Des Jardins, Terry.Publisher:Cengage Learning,Basic Clinical Lab Competencies for Respiratory C...NursingISBN:9781285244662Author:WhitePublisher:Cengage
- Fundamentals of Sectional Anatomy: An Imaging App...BiologyISBN:9781133960867Author:Denise L. LazoPublisher:Cengage LearningBiology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Cardiopulmonary Anatomy & Physiology
Biology
ISBN:9781337794909
Author:Des Jardins, Terry.
Publisher:Cengage Learning,
Basic Clinical Lab Competencies for Respiratory C...
Nursing
ISBN:9781285244662
Author:White
Publisher:Cengage
Fundamentals of Sectional Anatomy: An Imaging App...
Biology
ISBN:9781133960867
Author:Denise L. Lazo
Publisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning