![Airflow, Lung Volumes, and Flow-Volume Loop - Pulmonary Disorders - Merck Manuals Professional Edition Airflow, Lung Volumes, and Flow-Volume Loop - Pulmonary Disorders - Merck Manuals Professional Edition](https://www.merckmanuals.com/-/media/manual/professional/images/p/u/l/pul_spirogram_pe.gif?thn=0&sc_lang=en)
Airflow, Lung Volumes, and Flow-Volume Loop - Pulmonary Disorders - Merck Manuals Professional Edition
![SOLVED: 3.FEV,is the amount of vital capacity that is expired during the first second of the FVC test.A meaningful way to express FEV is as a percentage of the vital capacity: FEV1/VC SOLVED: 3.FEV,is the amount of vital capacity that is expired during the first second of the FVC test.A meaningful way to express FEV is as a percentage of the vital capacity: FEV1/VC](https://cdn.numerade.com/ask_images/883488dce9aa40e5baf02a5a7ba82467.jpg)
SOLVED: 3.FEV,is the amount of vital capacity that is expired during the first second of the FVC test.A meaningful way to express FEV is as a percentage of the vital capacity: FEV1/VC
![Pulmonary Function Testing: Spirometry, Lung Volume Determination, Diffusing Capacity of Lung for Carbon Monoxide Pulmonary Function Testing: Spirometry, Lung Volume Determination, Diffusing Capacity of Lung for Carbon Monoxide](https://img.medscapestatic.com/pi/meds/ckb/13/62313tn.jpg)