Final answer:
The normal adult range for Maximum Expiratory Pressure (MEP) measures how much air can be forced out of the lung from maximal inspiration over a specific amount of time. It is used to assess lung function and diagnose lung diseases such as asthma, emphysema, and fibrosis.
Step-by-step explanation:
The normal adult range for Maximum Expiratory Pressure (MEP) measures how much air can be forced out of the lung from maximal inspiration over a specific amount of time. It is commonly measured during spirometry, a technique used to assess lung function. The ratio of forced expiratory volume (FEV) to forced vital capacity (FVC) is used to diagnose lung diseases such as asthma, emphysema, and fibrosis. If the FEV1/FVC ratio is low, it indicates resistance in the lungs, while a high ratio suggests poor lung compliance.