Question

In: Anatomy and Physiology

Could someone please explain the consequences of low lung compliance. Thank you

Could someone please explain the consequences of low lung compliance. Thank you

Solutions

Expert Solution

Lung Compliance is the magnitude of the lung volume change generated by a presented change in transpulmonary pressure.

The transpulmonary pressure is higher than normal when lung compliance is low to generate a given amount of lung expansion.

There is a comparatively little difference in lung volume for a given change in Pressure (dV/dP) in the case of low lung compliance. Lesser the lung compliance more is the energy required to produce lung expansion.

People suffering from low lung compliance breathe shallowly and at a higher frequency.

Compliance is inversely proportional to the lung elastic recoil. The lungs are stiff and have a higher than normal level of elastic recoil when the compliance is low.

A stiff lung requires higher than the average change in pleural pressure to alter the lungs volume resulting in difficulty in breathing.

For example- A person with pulmonary fibrosis has low lung compliance.


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