Cardiac Output Calculator

Cardiac Output Calculator calculator can be used to estimate cardiac output using the Fick principle, which is the product of oxygen uptake and arteriovenous oxygen difference.

Input Parameters

Calculation Results

Calculation Formula

Cardiac Output (CO) = Oxygen Uptake (VO2) / Arteriovenous Oxygen Difference (AVO2D)

Where:
CO = Cardiac Output (L/min)
VO2 = Oxygen Uptake (ml/min)
AVO2D = Arteriovenous Oxygen Difference (ml/100ml)

Cardiac Output Calculator Calculator Usage Guide

Learn how to use the Cardiac Output Calculator calculator and its working principles

How to Use the Calculator

  1. Enter the oxygen uptake (ml/min) in the first input field.
  2. Enter the arteriovenous oxygen difference (ml/100ml) in the second input field.
  3. Click the "Calculate" button to compute the cardiac output.
  4. The result will be displayed in the Cardiac Output (L/min) field.

Understanding the Fick Principle

The Fick principle is a method used to estimate cardiac output by measuring the amount of oxygen that is consumed by the body and the difference in oxygen content between arterial and venous blood.

Cardiac Output (CO) is calculated as:

CO = Oxygen Uptake (VO2) / Arteriovenous Oxygen Difference (AVO2D)

The oxygen uptake can be measured directly using a metabolic cart, while the arteriovenous oxygen difference is typically estimated based on the patient's hemoglobin level, blood flow, and oxygen consumption.

Applications

This calculator is useful in clinical settings for assessing cardiac function, particularly in patients with heart failure, pulmonary disease, or during surgery.