A patient has an actual FVC of 2.8 L and a predicted FVC of 3.7 L. What is the percent predicted?

To calculate the percent predicted for the FVC, you use the formula:

[

\text{Percent Predicted} = \left( \frac{\text{Actual FVC}}{\text{Predicted FVC}} \right) \times 100

]

In this case, the actual FVC is 2.8 L and the predicted FVC is 3.7 L. Plugging in these values gives:

[

\text{Percent Predicted} = \left( \frac{2.8 , \text{L}}{3.7 , \text{L}} \right) \times 100

]

Calculating the fraction:

[

\frac{2.8}{3.7} \approx 0.7568

]

Now, multiplying by 100 to convert this fraction to a percentage:

[

0.7568 \times 100 \approx 75.68%

]

This is typically rounded to the nearest whole number, which gives approximately 76%. Therefore, the percent predicted FVC of the patient is accurately represented by the choice that corresponds to 76%. Understanding this calculation is crucial in assessing a patient's pulmonary function relative to their expected