# Safe Time for Apnea After Preoxygenation

> **NCT03239678** · NA · COMPLETED · sponsor: **Sixth Affiliated Hospital, Sun Yat-sen University** · enrollment: 90 (actual)

## Conditions studied

- Anesthesia, General

## Interventions

- **DRUG:** 100% Oxygen
- **DRUG:** 30% Oxygen
- **DRUG:** 21% Oxygen
- **DRUG:** 40% Oxygen
- **DRUG:** 60% Oxygen
- **DRUG:** 80% Oxygen

## Key facts

- **NCT ID:** NCT03239678
- **Lead sponsor:** Sixth Affiliated Hospital, Sun Yat-sen University
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2017-08-01
- **Primary completion:** 2017-12-30
- **Final completion:** 2017-12-30
- **Target enrollment:** 90 (ACTUAL)
- **Last updated:** 2022-11-29


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03239678

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03239678, "Safe Time for Apnea After Preoxygenation". Retrieved via AI Analytics 2026-05-21 from https://api.ai-analytics.org/clinical/NCT03239678. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*