Effect of pulmonary hyperventilation on the index of alveolar ventilation (IAV).

Details

• Personal Author:
  James, Ralph H.
• Description:
  Ventilatory patterns were found to affect the length, duration, and number of phases in the multiple breath nitrogen washout process in both pneumoconiotic and normal subjects, thereby affecting the calculated Index of Alveolar Ventilation (a measure of distribution uniformity). In general, an increase in tidal volume was seen to raise the index through a lengthening and straightening of the earlier phases of the washout. The association, though significant, on the qualitative level, did not allow for predictable variations in the index. Wide index variation under resting conditions was frequently noted. [Description provided by NIOSH]
• Subjects:
  Diagnosis Occupational Health Respiratory Function Tests Respiratory System Respiratory Tract Diseases Safety
• Keywords:
  NIOSH-Author; Respiratory-function-tests; Respiratory-mechanics; Respiratory-disorders; Diagnostic-tests; Test-methods; Physiology;
• Document Type:
  Text
• Genre:
  Report
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-21
• NIOSHTIC Number:
  nn:00047935
• Citation:
  NIOSH 1969 Jan; :1-21
• Federal Fiscal Year:
  1969
• Peer Reviewed:
  False
• Source Full Name:
  NIOSH, No. TR-60, 21 pages, 4 references
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7dc847c09aedf140bc731323e8446b4703641ae07d6ad9e7b7238120dab30b8f7dcaa9b938d34d035f87873a0fe7fec262d5d13dcaf290925445e82b6de3b57d
• Download URL:
  https://stacks.cdc.gov/view/cdc/241836/cdc_241836_DS1.pdf
• File Type:
  [PDF - 168.02 KB ]