Légzésfunkciók

Légzésfunkciók, often translated as lung function or respiratory function, refers to the assessment of how well the lungs work. This is typically evaluated through spirometry, a non-invasive test that measures the amount of air a person can inhale and exhale, and how quickly they can exhale it. These measurements provide crucial information about the capacity and efficiency of the respiratory system.

Several key parameters are assessed during a lung function test. Vital capacity (VC) is the total amount of air that can be exhaled after a maximum inhalation. Forced vital capacity (FVC) is similar but measured during a forced exhalation. Forced expiratory volume in one second (FEV1) measures the volume of air exhaled in the first second of a forced exhalation. The ratio of FEV1 to FVC (FEV1/FVC) is also an important indicator, as a lower ratio can suggest airway obstruction.

Lung function tests are vital diagnostic tools for a variety of respiratory conditions. They are instrumental in diagnosing and monitoring diseases such as asthma, chronic obstructive pulmonary disease (COPD), emphysema, and bronchitis. Changes in lung function can also be indicative of interstitial lung diseases, neuromuscular disorders affecting breathing, and the effects of certain medications or environmental exposures. Regular monitoring of lung function allows healthcare professionals to track disease progression, assess the effectiveness of treatments, and make informed decisions about patient care.