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Quick quiz? on physiology

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Active cycle of breathing technique

A three-stage process for clearing sputum

1: Relaxed breathing

2: Deep breathing

Also called 'thoracic expansion': Deep breathing includes holding the breath for a second or two (where possible) to encourage diffusion. After deep breathing, a few more relaxed breaths are recommended before continuing to the third 'huff' stage.

3: The huff

The critical stage: The huff is the point when the sputum is released, however if release is only partially successful, simply relax and repeat the three steps.. it is a process and not a test!