The way into the deep – Part 5
Experimental Decompression Research
Oxygen poisoning can be safely avoided by reducing the oxygen concentration in the gas mixture. The deep intoxication could be explained as carbonic acid retention, in extreme cases as carbonic acid narcosis. The increasing gas weight at overpressure makes breathing so difficult that when individually varying limits are exceeded, there is no longer sufficient ventilation. Hypoventilation, however, means an increase in carbonic acid tension in the alveoli and in the blood with all secondary effects on the circulation and consciousness.
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