Spirometry testing is one of the most widely used tools to assess respiratory health in occupational settings. For professionals managing workplace exposure risks, understanding how to perform spirometry and interpret results is essential. This guide explains how spirometry works, what it measures, and why it plays a critical role in workplace health programs.
Spirometry is a lung function test used to measure how well the lungs are working. It evaluates the total volume of air a person can move and how quickly the air is exhaled. This pulmonary function test is non-invasive, quick to perform, and essential for detecting early signs of lung disease. In occupational health, spirometry testing is commonly used to monitor workers exposed to respiratory hazards and support compliance with safety standards.
A spirometry test measures both the volume and speed of air moving in and out of the lungs. During the test, the individual takes a deep breath and exhales forcefully into a machine called a spirometer. This process helps determine the total volume of air that can be exhaled and how quickly the air is expelled.
Spirometry testing helps detect early signs of respiratory disease, monitor exposed workers, support compliance, and provide objective data for fitness-for-duty decisions.
Forced Expiratory Volume (FEV1): The amount of air a person can forcefully exhale in one second.
Forced Vital Capacity (FVC): The maximum total volume of air exhaled after taking a deep breath.
FEV1/FVC Ratio: Compares airflow to lung volume and helps identify obstructive or restrictive patterns.
Peak Expiratory Flow (PEF): The highest speed of airflow during exhalation.
Mid-Expiratory Flow: Measures airflow during the middle portion of exhalation.
Inspiratory Vital Capacity (IVC): The maximum amount of air that can be inhaled after a full exhale.
To perform spirometry, the individual takes a deep breath, seals their lips around the mouthpiece of the spirometer, and exhales as forcefully and completely as possible. Proper coaching is essential to obtain reliable results.
Well-trained technicians are essential for accurate spirometry testing. Proper training helps ensure correct test execution, consistent patient coaching, and reliable spirometry measurements that support workplace respiratory health programs.
In many occupational health settings, OSHA requires individuals conducting spirometry testing to complete a NIOSH-approved spirometry training course, depending on workplace exposures and employee risk.
e3 Diagnostics offers a two-day Spirometry for Occupational Medicine course designed to help healthcare and safety professionals meet these requirements and follow current ATS/ERS standards.
This 16-hour course combines lecture, demonstration, and hands-on practice with a variety of spirometers in a supportive classroom setting. Participants who successfully complete the course receive a certificate valid for five years. Training is ideal for nurses, medical assistants, technicians, safety personnel, and others involved in occupational spirometry testing.
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