Why the study?
Does four maximally deep breaths of 100% O2 within 30 seconds improve arterial oxygen tension (PaO2) compared to 5 minutes of spontaneously breathing 100% O2 in normal unanesthetized patients?
Population
Normal unanesthetized patients
Comparison
Four maximally deep breaths of 100% O2 within 30… vs 5 minutes of spontaneously breathing 100% O2 at…
Design
Other
Follow-up
5 minutes
Authors
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Four deep breaths may match 5-min O2 for PaO2 in normals; leaves open efficacy in broader or high-risk groups.
Does four maximally deep breaths of 100% O2 within 30 seconds improve arterial oxygen tension (PaO2) compared to 5 minutes of spontaneously breathing 100% O2 in normal unanesthetized patients?
Four maximally deep breaths of 100% oxygen within 30 seconds is as effective as 5 minutes of normal oxygen breathing for increasing arterial oxygenation before anesthetic induction.
Gold et al. (1982) studied this question.
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