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helium therapy |
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helium therapy, the use of helium-oxygen gas mixtures to treat patients with airway obstruction. Because of its low density, helium can negotiate an obstruction more easily than nitrogen can, so less driving pressure is required to move the gas mixture in and out of the lungs. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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