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Published on: January 8, 2019
The physiologic basis of spirometry
1Department of Pediatrics, University of Kentucky College of Medicine, Lexington KY 40536, USA. ddhaye2@uky.edu
Respiratory Care
|December 8, 2009
Summary
Spirometry, a key pulmonary function test, measures airflow over time. Its reproducible results, vital for diagnosing lung disease, depend on airway mechanics and lung elasticity.
Area of Science:
- Pulmonary Physiology
- Respiratory Medicine
Background:
- Spirometry is a widely used pulmonary function test.
- It measures lung volumes and airflow rates over time.
Purpose of the Study:
- To explain the physiological basis of spirometry.
- To highlight its utility in assessing and managing lung disease.
Main Methods:
- Spirometry involves measuring inhaled and exhaled air volumes.
- Analysis focuses on airflow dynamics during forced expiration.
Main Results:
- Spirometric indices are well-validated and reproducible.
- Reproducibility stems from compliant intrathoracic airways regulating airflow.
- Expiratory flow depends on lung elasticity and airway resistance.
Conclusions:
- Understanding respiratory physiology aids spirometry interpretation.
- Spirometry is an essential tool for pulmonologists and general practitioners.
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