Answer :
To determine the FEV1 (%) at the initial radius of 5.00 mm, more information is needed. FEV1 stands for Forced Expiratory Volume in 1 second and is typically expressed as a percentage of the predicted value based on an individual's age, height, gender, and other factors.
The initial radius of 5.00 mm alone does not provide enough information to calculate the FEV1 (%). FEV1 is typically measured using spirometry, a pulmonary function test that assesses lung function. It involves the forced expiration of air in 1 second after taking a deep breath.
To determine the FEV1 (%), the actual measured value of FEV1 would be needed, along with the predicted value for that individual. The ratio of the measured FEV1 to the predicted FEV1 is then calculated and expressed as a percentage.
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