Koko is a trained endurance runner who is 28 years old and 1.77 m tall. His...

Koko is a trained endurance runner who is 28 years old and 1.77 m tall. His pulmonary function test gives you the following results: FVC = 5.04 L; FEV1 = 4.55 L. What does the ratio of these two variables tell you? How do Koko’s values compared to a non-trained individual?

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Expert Solution

FEV1 , FVC is an useful measure to diagnose any abnormality in Lung.
The Ratio between FEV1/ FVC gives Tiffaneus's index.
Normal Tiffaneu's index is 70- 80 %.
So,
FEV1/FVC = 70 - 80% ( Tiffaneu's index ).
Here FEV1/ FVC ratio is 90 %.
This increase in the ratio indicates Restrictive lung disease.
Detailed explanation.

Sydney Mullin answered 11 months ago

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