Podcast
Questions and Answers
Which of the following factors can affect cardiac output?
Which of the following factors can affect cardiac output?
What is the equation for cardiac index?
What is the equation for cardiac index?
Under most normal conditions, what is the most important determinant of cardiac output?
Under most normal conditions, what is the most important determinant of cardiac output?
Which factor primarily controls cardiac output (CO) under most normal conditions?
Which factor primarily controls cardiac output (CO) under most normal conditions?
Signup and view all the answers
What is the equation for cardiac output (CO)?
What is the equation for cardiac output (CO)?
Signup and view all the answers
What happens to cardiac output (CO) when total peripheral resistance (TPR) decreases?
What happens to cardiac output (CO) when total peripheral resistance (TPR) decreases?
Signup and view all the answers
What is the effect of sympathetic activation and cardiac hypertrophy on cardiac output (CO)?
What is the effect of sympathetic activation and cardiac hypertrophy on cardiac output (CO)?
Signup and view all the answers
Which of the following describes the major regulator of coronary blood flow?
Which of the following describes the major regulator of coronary blood flow?
Signup and view all the answers
What is the equation to calculate cardiac output using the indicator dilution method?
What is the equation to calculate cardiac output using the indicator dilution method?
Signup and view all the answers
What are the principal factors that affect venous return?
What are the principal factors that affect venous return?
Signup and view all the answers
What is the equation to calculate venous return?
What is the equation to calculate venous return?
Signup and view all the answers
Study Notes
Cardiac Output
- Factors that can affect cardiac output include various physiological and pathological conditions.
- The equation for cardiac index is: Cardiac Index (CI) = Cardiac Output (CO) / Body Surface Area (BSA)
Determinants of Cardiac Output
- Under normal conditions, heart rate is the most important determinant of cardiac output.
- The equation for cardiac output is: Cardiac Output (CO) = Heart Rate (HR) x Stroke Volume (SV)
- Heart rate is primarily controlled by the autonomic nervous system, particularly the sympathetic nervous system.
Effects of Total Peripheral Resistance on Cardiac Output
- A decrease in total peripheral resistance (TPR) leads to an increase in cardiac output.
Effects of Sympathetic Activation and Cardiac Hypertrophy
- Sympathetic activation and cardiac hypertrophy increase cardiac output.
Regulation of Coronary Blood Flow
- Myocardial oxygen demand is the major regulator of coronary blood flow.
Indicator Dilution Method
- The equation to calculate cardiac output using the indicator dilution method is: Cardiac Output (CO) = Quantity of Indicator / (A - V) x (t2 - t1)
Venous Return
- The principal factors that affect venous return are: venous tone, blood volume, and pumping action of the skeletal muscles.
- The equation to calculate venous return is: Venous Return (VR) = (Right Atrial Pressure - Mean Circulatory Pressure) / Resistance to Venous Return
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Test your knowledge of cardiac output, venous return, and their regulation in circulation physiology. This quiz covers important concepts from Chapter 20 of the textbook "Medical Physiology" by Guyton and Hall. Measure your understanding of cardiac output values, the factors affecting venous return, and their significance in maintaining a healthy circulatory system.
