Tag Archives: FEV1

What is spirometry?

Spirometry is: A test to show how your lungs are working. One of the first tests which may be carried out to investigate any respiratory symptoms such as shortness of breath, cough or wheeze. Used to show if you have a lung disease. Used to help to separate patients with asthma from those with COPD. […]

Recognising and diagnosing occupational asthma

Often, there are symptom patterns and signs characteristic of occupational asthma when there is no other explanation for these symptoms. Likelihood of diagnosis increases if symptoms include two or more of these are mentioned: Wheezing or wheezy sounds in your chest. Chest tightness. Cough. Shortness of breath. Low forced expiratory flow in 1 second (FEV1) […]

What is measured

FEV1: Forced Expiratory Volume 1 – This is the volume of air that is forced out in 1 second. FVC: Forced Vital Capacity – This is the volume of air that can be forced out of the lung from full inspiration to full expiration. FEV1/FVC: Spirometric ratio – This compares the amount of air that can […]

Technical terms you may hear after spirometry tests

FEV1 or Forced Expiratory Volume 1 The maximum volume of air forced out from your lungs in 1 second (from full deep breath in). FVC or Forced Vital Capacity The FVC is measured by taking your biggest breath in (total lung capacity) and blowing out as fast as possible until you cannot breathe out any more. […]