8 doctors weighed in:
What does fev1 represent? What is considered to be a good fev1 level?
8 doctors weighed in

Dr. Brian Bezack
Pediatrics - Pulmonology
4 doctors agree
In brief: Lung function
The fev1 stands for forced expiratory volume in the 1st second of a lung function test.
It gives a picture of how fast the air is able to be expelled from the airways. A "normal" number is really dependent on multiple factors, but generally >80% predicted is acceptable.

In brief: Lung function
The fev1 stands for forced expiratory volume in the 1st second of a lung function test.
It gives a picture of how fast the air is able to be expelled from the airways. A "normal" number is really dependent on multiple factors, but generally >80% predicted is acceptable.
Dr. Brian Bezack
Dr. Brian Bezack
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Dr. Eric Toloza
Surgery - Thoracic
2 doctors agree
In brief: 1-sec breath out
Fev1, or forced expiratory volume in 1 second, refers to a test that measures how much air a person can blow out in 1 second of a forced exhalation.
Normal is >70% of the volume predicted for your height, weight, and age.

In brief: 1-sec breath out
Fev1, or forced expiratory volume in 1 second, refers to a test that measures how much air a person can blow out in 1 second of a forced exhalation.
Normal is >70% of the volume predicted for your height, weight, and age.
Dr. Eric Toloza
Dr. Eric Toloza
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