The cardiac output provided heart rate is 60 beats/minute , and the stroke volume is 70 mL/beat . Introduction: Cardiac output is the volume of blood pumped by the heart per minute. It tells us the capacity of the atrium and ventricles. The normal cardiac output of an adult man is 4 .7 liters of blood per minute.

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Answer 1

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Chapter 25, Problem 20RQ

Summary Introduction

To determine: The cardiac output provided heart rate is 60 beats/minute, and the stroke volume is 70 mL/beat.

Introduction: Cardiac output is the volume of blood pumped by the heart per minute. It tells us the capacity of the atrium and ventricles. The normal cardiac output of an adult man is 4.7 liters of blood per minute.

Summary Introduction

To determine: The cardiac output if the heartbeat increases to 120 beats/min during exercise.

Introduction: The stroke volume is the amount of blood pumped by the left ventricle in one contraction. The stroke volume can be calculated by subtracting end systolic volume from end diastolic volume.

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Sue goes to the gym and after an initial warm-up, she increases her exercise level pushing herself to maximum. At this point her heart rate is 175 beats/min and her stroke volume is 135 ml/beat. What is her cardiac output now? At this point, by how many ml/min has her CO increased over her resting CO? What % increase over resting is this? (Use the following equation). amount of increase in CO in ml/min % increase = _____________ X 100% original CO (resting) ml/min What term is used to describe this increase in CO?

Lucy is resting before her workout. Her heart is beating times 70 times per minute, and with each heartbeat, her ventricles are pumping 65 mL of blood. Calculate Lucy’s Cardiac Output.

. Cardiac output In the late 1860s, Adolf Fick, a professor of physiology in the Faculty of Medicine in Würzberg, Germany. developed one of the methods we use today for measuring how much blood your heart pumps in a minute. Your cardiac output as you read this sentence is probably about 7L/min. At rest it is likely to be a bit under 6 L/min. If you are a trained marathon runner running a marathon, your cardiac output can be as high as 30 L/min. Your cardiac output can be calculated with the formula where Qis the number of milliliters of CO, you exhale in a minute and D is the difference between the CO, concentration (ml/L) in the blood pumped to the lungs and the CO, concentration in the blood returning from the lungs. With Q - 233 ml/min and D - 97 - 56 - 41 ml/L, 233 ml/min 5.68 L/min, 41 ml/L fairly close to the 6 L/min that most people have at basal (resting) conditions. (Data courtesy of J. Kenneth Herd, M.D., Quillan Col- lege of Medicine, East Tennessee State University.)…

Answer 2

Question

Chapter 25, Problem 20RQ

Summary Introduction

To determine: The cardiac output provided heart rate is 60 beats/minute, and the stroke volume is 70 mL/beat.

Introduction: Cardiac output is the volume of blood pumped by the heart per minute. It tells us the capacity of the atrium and ventricles. The normal cardiac output of an adult man is 4.7 liters of blood per minute.

Summary Introduction

To determine: The cardiac output if the heartbeat increases to 120 beats/min during exercise.

Introduction: The stroke volume is the amount of blood pumped by the left ventricle in one contraction. The stroke volume can be calculated by subtracting end systolic volume from end diastolic volume.

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Answer 3

Question

Chapter 25, Problem 20RQ

Summary Introduction

To determine: The cardiac output provided heart rate is 60 beats/minute, and the stroke volume is 70 mL/beat.

Introduction: Cardiac output is the volume of blood pumped by the heart per minute. It tells us the capacity of the atrium and ventricles. The normal cardiac output of an adult man is 4.7 liters of blood per minute.

Summary Introduction

To determine: The cardiac output if the heartbeat increases to 120 beats/min during exercise.

Introduction: The stroke volume is the amount of blood pumped by the left ventricle in one contraction. The stroke volume can be calculated by subtracting end systolic volume from end diastolic volume.

Expert Solution & Answer

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Answer 4

Question

Chapter 25, Problem 20RQ

Summary Introduction

To determine: The cardiac output provided heart rate is 60 beats/minute, and the stroke volume is 70 mL/beat.

Introduction: Cardiac output is the volume of blood pumped by the heart per minute. It tells us the capacity of the atrium and ventricles. The normal cardiac output of an adult man is 4.7 liters of blood per minute.

Summary Introduction

To determine: The cardiac output if the heartbeat increases to 120 beats/min during exercise.

Introduction: The stroke volume is the amount of blood pumped by the left ventricle in one contraction. The stroke volume can be calculated by subtracting end systolic volume from end diastolic volume.

Expert Solution & Answer

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Answer 5

Chapter 25, Problem 20RQ

Summary Introduction

To determine: The cardiac output provided heart rate is 60 beats/minute, and the stroke volume is 70 mL/beat.

Introduction: Cardiac output is the volume of blood pumped by the heart per minute. It tells us the capacity of the atrium and ventricles. The normal cardiac output of an adult man is 4.7 liters of blood per minute.

Summary Introduction

To determine: The cardiac output if the heartbeat increases to 120 beats/min during exercise.

Introduction: The stroke volume is the amount of blood pumped by the left ventricle in one contraction. The stroke volume can be calculated by subtracting end systolic volume from end diastolic volume.

Answer 6

Chapter 25, Problem 20RQ

Summary Introduction

To determine: The cardiac output provided heart rate is 60 beats/minute, and the stroke volume is 70 mL/beat.

Introduction: Cardiac output is the volume of blood pumped by the heart per minute. It tells us the capacity of the atrium and ventricles. The normal cardiac output of an adult man is 4.7 liters of blood per minute.

Answer 7

Chapter 25, Problem 20RQ

Summary Introduction

To determine: The cardiac output provided heart rate is 60 beats/minute, and the stroke volume is 70 mL/beat.

Introduction: Cardiac output is the volume of blood pumped by the heart per minute. It tells us the capacity of the atrium and ventricles. The normal cardiac output of an adult man is 4.7 liters of blood per minute.

Answer 8

Summary Introduction

To determine: The cardiac output if the heartbeat increases to 120 beats/min during exercise.

Introduction: The stroke volume is the amount of blood pumped by the left ventricle in one contraction. The stroke volume can be calculated by subtracting end systolic volume from end diastolic volume.

Answer 9

Summary Introduction

To determine: The cardiac output if the heartbeat increases to 120 beats/min during exercise.

Introduction: The stroke volume is the amount of blood pumped by the left ventricle in one contraction. The stroke volume can be calculated by subtracting end systolic volume from end diastolic volume.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 25.2 - If venous PO2 decreases as exercise intensity...Ch. 25.3 - In Figure 25.8b, why does the line for mean blood...Ch. 25.5 - The active vasodilator nerves to the skin secrete...Ch. 25 - Name the two muscle compounds that store energy in...Ch. 25 - Prob. 2RQ Ch. 25 - Prob. 3RQ Ch. 25 - Prob. 4RQ Ch. 25 - Prob. 5RQ Ch. 25 - What is meant by the term oxygen deficit, and how...Ch. 25 - Prob. 7RQ

Solution Summary: The author explains how the cardiac output is proportional to the heart rate.

To determine: The cardiac output if the heartbeat increases to 120 beats/min during exercise.

Introduction: The stroke volume is the amount of blood pumped by the left ventricle in one contraction. The stroke volume can be calculated by subtracting end systolic volume from end diastolic volume.

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Chapter 25 Solutions

Solution Summary: The author explains how the cardiac output is proportional to the heart rate.

To determine: The cardiac output if the heartbeat increases to 120 beats/min during exercise. Introduction: The stroke volume is the amount of blood pumped by the left ventricle in one contraction. The stroke volume can be calculated by subtracting end systolic volume from end diastolic volume.

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Chapter 25 Solutions

To determine: The cardiac output if the heartbeat increases to 120 beats/min during exercise.

Introduction: The stroke volume is the amount of blood pumped by the left ventricle in one contraction. The stroke volume can be calculated by subtracting end systolic volume from end diastolic volume.