I need help with this bio 242 question FEVr (forced expiratory volume) is the am
ID: 302973 • Letter: I
Question
I need help with this bio 242 question
FEVr (forced expiratory volume) is the amount of air exhaled during a specific interval of time (T). This data is calculated from the FVC (see above) using a recording spirometer (which we 3. don't have in our lab). A typical healthy individual will expel 75-80% of the FVC volume within the first second! This datapoint is FEV? This measurement is useful in determining whether the patient is having trouble breathing due to a restrictive or an obstructive disorder. Would the FEVI be reduced in a restrictive or obstructive disorder? Explain your answer.Explanation / Answer
Forced expiratory volume or FEV is a test in which a person is asked to forcibly exhale.
FEV1 is the volume of air expired in the 1st second of the test.
FEV2 is the volume of air expired in the 2nd second of the test.
FVC is the total volume of air expired by the patient during the test.
FEV1 for an individual with obstructive lung disease is going to be less than 75%. Note: for the diagnosis of disease, the value required for a diagnosis differs from doctors.
The reasons for the reduced FEV1 are