Pulmonary Flow Calculator

Formula

To calculate Pulmonary Flow (PF):

\[ PF = \frac{VO2}{(CaO2 - CvO2)} \times 1000 \]

Where:

\(PF\) is the pulmonary flow (L/min)
\(VO2\) is the oxygen consumption (mL/min)
\(CaO2\) is the arterial oxygen content (mL O2/L)
\(CvO2\) is the venous oxygen content (mL O2/L)

Pulmonary Flow Definition

Pulmonary flow refers to the volume of blood that passes through the lungs per minute. It is crucial for assessing pulmonary circulation efficiency and understanding how well the blood is oxygenated. Factors affecting pulmonary flow include cardiac output, oxygen consumption, and the oxygen content in arterial and venous blood.

Example Calculation 1

Let's assume the following values:

Oxygen Consumption (VO2) = 250 mL/min
Arterial Oxygen Content (CaO2) = 20 mL O2/L
Venous Oxygen Content (CvO2) = 15 mL O2/L

Step 1: Use the formula:

\[ PF = \frac{250}{(20 - 15)} \times 1000 = 5000 \]

Step 2: Display the result:

The pulmonary flow is 5000.00 L/min.

Example Calculation 2

Let's assume the following values:

Oxygen Consumption (VO2) = 300 mL/min
Arterial Oxygen Content (CaO2) = 22 mL O2/L
Venous Oxygen Content (CvO2) = 18 mL O2/L

Step 1: Use the formula:

\[ PF = \frac{300}{(22 - 18)} \times 1000 = 7500 \]

Step 2: Display the result:

The pulmonary flow is 7500.00 L/min.