VENTILATORY DYNAMICS UNDER HYPERBARIC STATES

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dc.contributor.author Wood, WB
dc.contributor.author Leve, LH
dc.contributor.author Workman, RD
dc.date.accessioned 2006-12-09T02:03:55Z
dc.date.available 2006-12-09T02:03:55Z
dc.date.issued 1962
dc.identifier.citation AD0289217 en
dc.identifier.govdoc AD0289217
dc.identifier.govdoc RR1 62
dc.identifier.uri http://archive.rubicon-foundation.org/3856
dc.description Citation Status: Active; Citation Classification: Unclassified; Title Classification: Unclassified; Report Classification: Unclassified; Identifier Classification: Unclassified; Abstract Classification: Unclassified; Distribution Limitation(s): 01 - APPROVED FOR PUBLIC RELEASE; Information provided by the Department of Defense and the Defense Technical Information Center (http://www.dtic.mil/) is considered public information and may be distributed or copied unless otherwise specified. Use of appropriate byline/photo/image credits is requested. ST-A NEDU LTR, 28 JAN 66 en
dc.description.abstract Eleven U. S. Navy divers performed comparative dynamic pulmonary function tests under conditions of increasing density of the respiratory media. Variations in density and viscosity were produced by having the subjects breath air and heliumoxygen mixes in alternate studies while being subjected successively to 1 through 15 atmospheres absolute pressure. Substitution of 95% helium-5% oxygen at 15 atm. abs. produced significantly less variation from normal in all parameters measured. Mean figures were 76.8% of predicted MBC, 70.9% first second TVC, and an MEF of 281 LPM. The increased work of breathing accompanying increased density of the respiratory media probably accounts for the relative decrease in RMV previously observed in underwater swimmers. Helium-oxygen mixtures provide a more ideal respiratory media than nitrogen-oxygen mixtures for marked hyperbaric conditions, especially under circumstances requiring high flow rates and large respiratory minute volumes. (Author) en
dc.description.sponsorship US NAVY en
dc.format.extent 39535467 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher NAVY EXPERIMENTAL DIVING UNIT WASHINGTON D C en
dc.subject Breathing apparatus en
dc.subject diving en
dc.subject BAROMETRIC PRESSURE en
dc.subject VISCOSITY en
dc.subject CONVULSIVE DISORDERS en
dc.subject DYNAMICS en
dc.subject DENSITY en
dc.subject VISCOSITY en
dc.title VENTILATORY DYNAMICS UNDER HYPERBARIC STATES en
dc.type Technical Report en

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