Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure
Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen
Administering Oxygen by Mask
Administering Oxygen by Nasal Cannula
Pneumothorax-I
Oxygen Delivering System III: Tracheostomy and T-piece
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Updated: May 15, 2026

Preoxygenation Techniques for Tracheal Intubation in Critically Ill Adults Utilizing Oxygen Mask and Noninvasive Ventilation
Published on: December 5, 2025
Richard D Branson1, Jay A Johannigman
1Division of Trauma and Critical Care, Department of Surgery, University of Cincinnati, Cincinnati, Ohio 45267-0558, USA. richard.branson@uc.edu
Prehospital oxygen therapy should target hypoxemia (low oxygen levels) and aim for normal oxygen levels (normoxemia). Current practices need changes, as too much oxygen (hyperoxia) can harm certain patients.
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