Hello all

This is a question regarding lung volumes and the FET part of the ACBT.

low lung volumes will move peripheral secretions
high lung volumes will move proximal secretions

a lung volume above FRC will move the EPP towards the bronchi
a lung volume below FRC will move the EPP towards the alveoli and smaller airways

on reading various articles, they state to start wil mid- low lung volumes, with a more prolonged huff

then breathing control

then high lung volumes with a sharper, quicker huff to remove the secretions that are in the larger airways

my question is what is a high lung volume and what is a low lung volume?
and how do we explain this to the patient?

Is it simply a low lung volume is reached by a shallow breath, and a high lung volume reached by a deeper breath? Or the other way around?

many thanks

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