Human Decompression Trial in Nitrogen-Oxygen Diving
Abstract
A trial was performed to assess the relative risks of oxygen and nitrogen in human no-decompression dives. Dives (n=477) were performed with subjects breathing mixtures with low or high oxygen partial pressures. Dives were 30, 60, or 240 min in duration to various depths chosen by a sequential dose-response format. Despite exceeding the currently accepted safe limits by more than 20 percent, the incidence of demonstrable DCS was under 3 percent. Another 3 percent had ambiguous symptoms. An increase in DCS risk with higher N2 pressure could not be strongly demonstrated. Oxygen had less than half of the DCS risk associated with nitrogen.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 26, 1986
- Accession Number
- ADA180646
Entities
People
- B. L. Hart
- E. T. Flynn
- P. K. Weathersby
- W. F. Walker
Organizations
- Naval Medical Research Center