Final answer:
Spirometry is a laboratory test that measures lung ventilation capability. It helps diagnose respiratory diseases and evaluate the effectiveness of treatment. The test measures lung volumes and ratios, such as FEV1/FVC, to assess lung function.
Step-by-step explanation:
Spirometry is a laboratory test that measures the ventilation capability of the lung. It helps in diagnosing respiratory diseases and determining the effectiveness of disease treatment. The test measures lung volumes, such as forced expiratory volume (FEV) and forced vital capacity (FVC), which are used to assess lung function.
The FEV1/FVC ratio is an important measurement derived from spirometry. A high ratio indicates stiff and non-compliant lungs, which may suggest lung fibrosis. Conversely, a low ratio suggests resistance in the lungs, characteristic of asthma. These measurements help in diagnosing and managing lung diseases.
Spirometry is a valuable tool used by doctors to evaluate lung function and monitor respiratory diseases. It provides objective data to guide treatment decisions and assess the effectiveness of interventions.