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. 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.) Suppose that when Q - 233 and D - 41, we also know that D is decreasing at the rate of 2 units a minute but that Q remains unchanged. What is happening to the 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.) Suppose that when Q - 233 and D - 41, we also know that D is decreasing at the rate of 2 units a minute but that Q remains unchanged. What is happening to the cardiac output?

Lifetime Physical Fitness & Wellness
Lifetime Physical Fitness & Wellness
15th Edition
ISBN:9781337677509
Author:HOEGER
Publisher:HOEGER
Chapter6: Cardiorespiratory Endurance
Section: Chapter Questions
Problem 1AYK
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. 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.) Suppose that when Q - 233 and D - 41, we also know that D is decreasing at the rate of 2 units a minute but that Q remains unchanged. What is happening to the cardiac output?
Transcribed Image Text:. 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.) Suppose that when Q - 233 and D - 41, we also know that D is decreasing at the rate of 2 units a minute but that Q remains unchanged. What is happening to the cardiac output?
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