Wang, S. C., and Ngai, S. H., in Handbook of Physiology, Respiration, edit. by Fenn, W. O., and Rahn, H., 1, 487 (Williams and Wilkins, Baltimore, 1964).
Of note, if the patient is bedfast, complete evaluation of respiratory efficiency is often less than optimal because chest expansion is not always symmetric and percussion notes may be less resonant.
Breathing techniques may reduce stress and anxiety, help a person get to sleep, or support treatment for lung conditions. Some techniques work to give immediate relief. Others may work best with ...
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