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Figure 70-10
Decrease in vital capacity (VC) as a function of time
breathing 100% O2
at 2 ATA in humans. The figure illustrates the value
of intermittent O2
(20 minutes of O2
, 5 minutes of air) versus
continuous administration in the prevention of pulmonary O2
toxicity.
Numbers in parentheses represent the number of subjects tested. (Redrawn
from Clark JM: Oxygen toxicity. In Bennett PB,
Elliott DH [eds]: The Physiology and Medicine of Diving. Philadelphia, WB Saunders,
1993, p 121.)
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