What is the primary function of a spirometer in pulmonary physiology?

The primary function of a spirometer in pulmonary physiology is to measure lung volumes and air flow. This device is essential for assessing respiratory function, as it provides valuable quantitative data about how well the lungs are working. By evaluating various lung volumes, such as tidal volume, vital capacity, and residual volume, along with measuring how quickly air can be exhaled, healthcare professionals can diagnose and monitor conditions like asthma, chronic obstructive pulmonary disease (COPD), and other respiratory disorders.

Understanding lung function is critical for assessing overall pulmonary health, and a spirometer provides the necessary metrics to evaluate changes over time or in response to therapeutic interventions. Thus, its role in measuring airflow and lung volumes is crucial for both clinical assessments and research in respiratory physiology.