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Figure 70-1
Mobile hyperbaric operating room described by Fontaine
in 1879.[5]
Nitrous oxide storage tanks can be
seen under the operating table. A nitrous oxide-oxygen mixture compressed to 1.25
to 1.33 atmospheres absolute (ATA) with air was provided to the patient. Breathing
air in this chamber would have provided an inspired PO2
equivalent to 26% to 28% O2
at 1 ATA.
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