Final answer:
MMEF stands for Maximal Mean Expiratory Flow and is a measure of how much air can be forced out of the lung over a specific amount of time. It is used in spirometry to assess lung function and diagnose lung diseases such as asthma, emphysema, and fibrosis.
Step-by-step explanation:
MMEF stands for Maximal Mean Expiratory Flow. It is a measure of how much air can be forced out of the lung over a specific amount of time. MMEF is often used in spirometry to assess lung function and diagnose lung diseases such as asthma, emphysema, and fibrosis. A high MMEF indicates stiff lungs, which is characteristic of lung fibrosis, while a low MMEF suggests resistance in the lungs, which is characteristic of asthma.