Podcast
Questions and Answers
What is the definition of cardiac output?
What is the definition of cardiac output?
- Volume of blood in each ventricle at the end of systole
- Volume of blood pumped by the heart per second
- Volume of blood pumped by each ventricle per minute (correct)
- Volume of blood returning to the right side of the heart per minute
If the stroke volume is 70 ml and the heart rate is 70 beats per minute, what is the cardiac output?
If the stroke volume is 70 ml and the heart rate is 70 beats per minute, what is the cardiac output?
- 4900 ml/min (correct)
- 4950 ml/min
- 5000 ml/min
- 4850 ml/min
What is the normal range for ejection fraction?
What is the normal range for ejection fraction?
- Greater than 70%
- Greater than 80%
- Greater than 60% (correct)
- Greater than 50%
Which of the following statements is true about cardiac index?
Which of the following statements is true about cardiac index?
What is the normal value for cardiac index?
What is the normal value for cardiac index?
Which of the following statements is true about venous return?
Which of the following statements is true about venous return?
What is the relationship between venous return and cardiac output?
What is the relationship between venous return and cardiac output?
How is ejection fraction commonly measured?
How is ejection fraction commonly measured?
What is the primary purpose of echocardiography in relation to cardiac output?
What is the primary purpose of echocardiography in relation to cardiac output?
Which of the following conditions is NOT associated with a pathological increase in cardiac output?
Which of the following conditions is NOT associated with a pathological increase in cardiac output?
Which principle is used to measure cardiac output by the dye dilution method?
Which principle is used to measure cardiac output by the dye dilution method?
Which of the following is a physiological factor that decreases cardiac output?
Which of the following is a physiological factor that decreases cardiac output?
What is the term used to describe the end-diastolic volume, which determines the initial length of the muscle fibers and the degree of stretch of the myocardium?
What is the term used to describe the end-diastolic volume, which determines the initial length of the muscle fibers and the degree of stretch of the myocardium?
Which method is used to measure cardiac output based on the principle of oxygen consumption?
Which method is used to measure cardiac output based on the principle of oxygen consumption?
Which of the following conditions is associated with a pathological decrease in cardiac output?
Which of the following conditions is associated with a pathological decrease in cardiac output?
What is the term used to describe the resistance against which the heart must pump blood, primarily determined by arterial blood pressure?
What is the term used to describe the resistance against which the heart must pump blood, primarily determined by arterial blood pressure?
What happens to stroke volume when venous return increases?
What happens to stroke volume when venous return increases?
Which factor does NOT affect venous return?
Which factor does NOT affect venous return?
What does afterload refer to in the context of the cardiovascular system?
What does afterload refer to in the context of the cardiovascular system?
During a sudden rise in arterial blood pressure, what happens to stroke volume?
During a sudden rise in arterial blood pressure, what happens to stroke volume?
In what condition does an increase in heart rate NOT lead to an increase in cardiac output?
In what condition does an increase in heart rate NOT lead to an increase in cardiac output?
What happens to stroke volume when heart rate increases with constant venous return?
What happens to stroke volume when heart rate increases with constant venous return?
During paroxysmal tachycardia (> 200 beats per minute), what happens to the diastole?
During paroxysmal tachycardia (> 200 beats per minute), what happens to the diastole?
What is the effect of a sudden rise in arterial blood pressure on stroke volume during the second systole?
What is the effect of a sudden rise in arterial blood pressure on stroke volume during the second systole?
