title: [Effect of a nitrogen admixture in the inhaled oxygen on the effectiveness of 2-hour desaturation before decompression from 760 to 220 mm Hg].
abstract: The ground-based experimental study of denitrogenation by oxygen breathing showed that two-hour denitrogenation was inadequate if the breathing gas contained about 10% nitrogen or if the process included 3-10 min of air breathing. The reduction of the nitrogen content in the breathing gas to 0.4-5% eliminated severe forms of the decompression disease and decreased significantly the incidence of its mild forms to 3.2%. This allowed work of moderate load at the ambient pressure 220 mm Hg after two-hour breathing of oxygen with nitrogen admixture of no more than 5%.
mesh_terms: D001274:Atmospheric Pressure; D003664:Decompression / Q000379:methods*; D003665:Decompression Sickness / Q000517:prevention & control; D006801:Humans; D008297:Male; D009584:Nitrogen / Q000008:administration & dosage*; D010100:Oxygen / Q000008:administration & dosage*; D005082:Physical Exertion; D013997:Time Factors
chemical_list: D009584:Nitrogen; D010100:Oxygen
vernacular_title: Vliianie primesi azota vo vdykhaemom kislorode na éffektivnost' dvukhchasovoĭ desaturatsii pered dekompressieĭ ot 760 k 220 mm rt. st.