BuyFind

Cardiopulmonary Anatomy & Physiolo...

7th Edition
Des Jardins + 1 other
Publisher: Cengage Learning,
ISBN: 9781337794909
BuyFind

Cardiopulmonary Anatomy & Physiolo...

7th Edition
Des Jardins + 1 other
Publisher: Cengage Learning,
ISBN: 9781337794909

Solutions

Chapter
Section
Chapter 6, Problem 5RQ
Textbook Problem

The normal calculated anatomic shunt is about

A. 0.5-1 percent

B. 2-5 percent

C. 6-9 percent

D. 10-12 percent

Expert Solution
Summary Introduction

Introduction:

Pulmonary shunting is a condition where alveoli are perfused with the normal amount of blood, but the oxygen does not reach the alveoli of the lungs, so enough ventilation does not occur. This means that the ventilation to perfusion ratio is zero. Pulmonary shunting could be due to absolute shunts (anatomical) or pathological shunts (congenital defects and pulmonary edema). This leads to the mixing of non-oxygenated blood with the oxygenated blood.

Explanation of Solution

Justification/Explanation for the correct answer:

Option (b) is, ‘2-5%.’ True or absolute shunts could be anatomic or capillary. Anatomic shunting is the perfect type of pulmonary shunting as no oxygen comes in contact with the alveoli of the lungs. When calculated, the anatomic shunt value is about 3% of the cardiac output (4.5-5 L/min liter per minute). Shunting leads to venous admixture, which is the mixing of non-oxygenated blood with the oxygenated blood. Hence, option (b) is correct.

Explanation for incorrect answers:

Option (a) is, ‘0.5-1%.’ Non-oxygenated blood gets mixed with the oxygenated blood distal to alveoli due to pulmonary shunting...

Want to see this answer and more?

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

See solution

Additional Science Textbook Solutions

Find more solutions based on key concepts
Show solutions
Lactation consultants are employed by hospitals to help new mothers understand the advantages of feeding their ...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

Where should the police car in Figure 6-9 have parked to make a good measurement?

Horizons: Exploring the Universe (MindTap Course List)

Match the term listed in Column A with its definition from Column B

Nutrition Through the Life Cycle (MindTap Course List)

What percentage of the world ocean is involved in wind-driven surface currents?

Oceanography: An Invitation To Marine Science, Loose-leaf Versin

A balloon clings to a wall after it is negatively charged by rubbing. (a) Does that occur because the wall is p...

Physics for Scientists and Engineers, Technology Update (No access codes included)