Enter the cardiac output (L/min) and the body surface area (m^2) into the Calculator. The calculator will evaluate the Cardiac Index.
Cardiac Index Formula
CI = CO / BSA
Variables:
- CI is the Cardiac Index (L/min/m^2)
- CO is the cardiac output (L/min)
- BSA is the body surface area (m^2)
To calculate Cardiac Index, divide the cardiac output by the body surface area.
How to Calculate Cardiac Index?
The following steps outline how to calculate the Cardiac Index.
- First, determine the cardiac output (L/min).
- Next, determine the body surface area (m^2).
- Next, gather the formula from above = CI = CO / BSA.
- Finally, calculate the Cardiac Index.
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
cardiac output (L/min) = 5
body surface area (m^2) = 2.5
FAQs
What factors can affect Cardiac Output?
Several factors can affect Cardiac Output, including heart rate, blood volume, and the resistance the heart must overcome to pump blood through the body’s circulatory system.
Why is the Cardiac Index important in medical assessments?
The Cardiac Index is important because it provides a more accurate measure of the heart’s efficiency by accounting for the patient’s body size. This helps in diagnosing and managing conditions like heart failure.
Can the body surface area (BSA) vary significantly between individuals?
Yes, BSA can vary significantly between individuals based on factors like height and weight, making it crucial for personalized medical assessments such as calculating the Cardiac Index.
How can someone improve their Cardiac Output or Cardiac Index?
Improving Cardiac Output or Cardiac Index can involve lifestyle changes such as regular exercise, a healthy diet, managing stress, and avoiding smoking. In some cases, medication or surgical interventions may be necessary.
