Enter the Forced Vital Capacity and Forced Expiratory Volume in the first second into the calculator to determine the Pulmonary Function Test Interpretation. This calculator can also evaluate any of the variables given the others are known.

## Pft Interpretation Formula

PFT = (FVC / FEV1) * 100

The following formula is used to calculate the Pft Interpretation. Variables:

- PFT is the Pulmonary Function Test Interpretation FVC is the Forced Vital Capacity FEV1 is the Forced Expiratory Volume in the first second

To calculate the Pft Interpretation, divide the Forced Vital Capacity by the Forced Expiratory Volume in the first second, then multiply the result by 100. This will give you the Pft Interpretation in percentage form.

## What is a PFT interpretation?

A PFT interpretation refers to the analysis of a Pulmonary Function Test, a set of tests that measure how well your lungs work. This includes how well you’re able to breathe and how effective your lungs are in bringing oxygen to the rest of your body. The interpretation involves understanding the results of these tests, which can help diagnose and decide the treatment for certain lung disorders.

## How to Calculate Pft Interpretation?

The following steps outline how to calculate the PFT Interpretation.

- First, determine the Forced Vital Capacity (FVC).
- Next, determine the Forced Expiratory Volume in the first second (FEV1).
- Next, use the formula PFT = (FVC / FEV1) * 100 to calculate the PFT Interpretation.
- Finally, interpret the PFT result based on the calculated value.
- After inserting the variables and calculating the result, interpret the PFT result.

**Example Problem : **

Use the following variables as an example problem to test your knowledge.

Forced Vital Capacity (FVC) = 4.5 L

Forced Expiratory Volume in the first second (FEV1) = 3.8 L