Why the study?
Does four maximally deep breaths of 100% O2 within 30 seconds provide similar arterial oxygenation 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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Supports rapid four-breath preoxygenation for comparable oxygenation; leaves open confirmation in high-risk or anesthetized patients.
Does four maximally deep breaths of 100% O2 within 30 seconds provide similar arterial oxygenation 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 spontaneous oxygen breathing for increasing arterial oxygenation before anesthetic induction.
Gold et al. (1981) studied this question.
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