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FEV1 (Forced Expiratory Volume in 1 Second)

0.2 L8 L

FVC (Forced Vital Capacity)

0.2 L9 L

Age

years

5 years100 years

FEV1/FVC Ratio

80.0

Tiffeneau index (FEV1/FVC). Educational reference only, not a substitute for clinical judgment.

Interpretation

General interpretation, using a lower threshold for patients over 65. At or above threshold - normal airflow pattern

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