Alpha-1 Lung Vocabulary
Pulmonary Function Values 

 

Severity of Lung Disease
Value Mild Moderate Moderately Severe Severe
FVC 60 - 79% 51 - 59% - < 50%
FEV1 60 - 79% 51 - 59% 41 - 50% < 40%
FEV1/FVC 60 - 69% 51 - 59% 41 - 50% < 40%
DLco 60 - 79% 51 - 59% 41 - 50% < 40%

 

Find out your Predicted Values from Johns Hopkins
Pulmonary Function Calculator

 

Definitions and Terms

  • FVC - forced vital capacity - the volume of air that can be maximally forcefully exhaled.

  • FEV1 - forced expiratory volume 1 - the volume of air that is forcefully exhaled in one second.

  • FEV1/FVC - ratio of FEV1 to FVC, expressed as a percentage

  • DLco - Diffusion Capacity. This study examines the ability of oxygen to travel into your lungs and uses a tiny amount of carbon monoxide (CO) to mimic the movement of oxygen from the air in the alveolus to the blood in the capillary.

 

 

References:
1. Scott Moses, MD; Family Practice Notebook, LLC. 2000 

 

Disclaimer
This site is not a substitute for genuine medical advice. The information provided by this site is for the education and support of people diagnosed with A1Ad and others wishing to know more about this condition. It is intended that this site will enable you to ask your own doctors the right questions about your condition.

 

Copyright © 2000 by Spiderspun. All rights reserved.
Revised: December 19, 2006 03:18 PM