Spirometry

Spirometry is a commonly used breathing test that helps assess lung function and conditions such as asthma and chronic obstructive pulmonary disease (COPD). It can also be repeated to monitor chronic lung disease and response to treatment. Results are interpreted alongside a person’s medical history and clinical examination. The test can help assess changes in lung function, the effects of occupational or environmental exposure such as cigarette smoke and industrial dust, and respiratory considerations before surgery. During the test, you breathe into a small medical device called a spirometer, which records the volume and speed of air breathed out.

Key measurements in spirometry

Forced vital capacity (FVC) is the total amount of air that can be exhaled forcefully after a deep breath. Forced expiratory volume in one second (FEV1) is the amount exhaled during the first second. These measurements and their ratio help the clinician assess breathing function; a single low measurement does not by itself establish a diagnosis.

Respiratory specialists at Omid Hospital:

Dr. Mahdieh Gholamnejad — Pulmonologist; Dr. Ali Jafari Heydarlou — Pulmonologist