The Effects of an Isotonic Saline Nebulizer
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Expectoration
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The use of isotonic nebulized saline can be used to enhance expectoration, or mucous removal, from the bronchioles. The journal "BMC Pulmonary Medicine" reported in 2004 that 65 percent of patients benefit from saline alone compared to just 5 percent of the controls. In addition, the isotonic saline group reported better subjective breathing scores. This was due to the smaller amount of mucous obstructing the airways. If sputum is needed to test for respiratory pathology, then nebulized saline is recommended for loosening and removal.
Humidification
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Isotonic nebulized saline can be used to humidify airways. If a patient is having decreased oxygen intake due to illness, adding just dry air can irritate the lining of the lungs. Using a small amount of nebulized saline can ease the the process by decreasing damage to the cilia, which are tiny "brooms" that move particles through mucous membranes.
Vocalization
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Maintaining a smooth unobstructed airway is vital in patients, but it also has recreational uses. The "Journal of Speech, Language, and Hearing Research" compared water-nebulized soprano singers to a saline-nebulized group. The saline group exhibited better vocal effort than water alone.
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