NIOSHTIC-2 Publications Search
Technical Factors Influencing the Nitrogen Single Breath Washout Test: An Experimental Study in Subjects with Pulmonary Disease.
NIOSH 1968 Dec:28 pages
Factors influencing the increase in per cent nitrogen of expired volumes are studied for tracings taken in the nitrogen single breath test from miners with varied levels of pulmonary disability. The factors include a difference in inspired oxygen volume, as related to maximal end-expiratory position or resting end-expiratory position inhalation, and ventilatory conditions; expiratory flow rate; and expiratory flow pattern.
Respiratory-system-disorders; Respiratory-function-tests; Vital-capacity; Lung-ventilation; Physiological-effects;
NIOSH, Environmental Control Agency, Report No. TR-55, 28 pages, 19 references
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division