This study explores whether simply guiding patients to breathe slowly and calmly before anesthesia can help improve oxygen levels and keep them safe for longer during induction. The investigators included 120 participants scheduled for elective surgery, comparing routine preoxygenation with a gentle, coached breathing technique using steady inhalation and exhalation. The investigator focused mainly on how long participants could safely tolerate apnea, while also examining oxygen levels, vital signs, and anxiety.
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Oxygen saturation
Timeframe: 3 minutes