Lung capacity can be measured using several techniques:
- Spirometry: The most common test, it measures the amount and speed of air a person can inhale and exhale. It provides values for FVC (Forced Vital Capacity) and FEV1 (Forced Expiratory Volume in one second). - Plethysmography: Measures the volume of gas in the lungs, including the air that remains after exhalation (RV). - Peak Flow Meter: Measures the peak expiratory flow rate (PEFR), useful for patients with asthma to monitor their condition. - Gas Diffusion Tests: Measures how well gases like oxygen move from the lungs into the blood.
