What is the normal maximum expiratory pressure (MEP) in cmH2O?

The normal maximum expiratory pressure (MEP) is an important measure of respiratory muscle strength and is typically around 160 cmH2O in healthy individuals. This measurement indicates the maximum pressure that can be generated during a forced expiration.

Understanding MEP is crucial in assessing the efficiency of the respiratory system, particularly in patients with conditions that might affect lung function, such as chronic obstructive pulmonary disease (COPD) or neuromuscular disorders. A higher MEP value suggests stronger expiratory muscles, which aids in effective airway clearance and overall respiratory health.

In clinical practice, recognizing the standard range for MEP helps in evaluating a patient's ventilatory capacity and can guide treatment decisions. When interpreting MEP values, one needs to consider that values outside the normal range may indicate underlying pathologies or reduced muscle function.