What is the initial fraction of inspired oxygen (FIO2) in mechanical ventilation?

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Christopher D Jackson, MD Faculty, Department of Internal Medicine, University of Tennessee Health Science Center College of Medicine-Memphis; Staff Physician, Christ Community Health Services; Staff Physician, Baptist Memorial Hospital

Christopher D Jackson, MD is a member of the following medical societies: American College of Physicians, Memphis Medical Society, National Medical Association, Southern Medical Association

Disclosure: Nothing to disclose.

Muthiah P Muthiah, MD, FCCP, D-ABSM Associate Professor of Medicine, Division of Pulmonary and Critical Care and Sleep Medicine, Vice Chair for Internal Medicine (VA Academic Affairs), University of Tennessee Health Science Center College of Medicine; Director of Medical Intensive Care Unit (MICU), Memphis Veterans Affairs Medical Center

Muthiah P Muthiah, MD, FCCP, D-ABSM is a member of the following medical societies: American Academy of Sleep Medicine, American College of Chest Physicians, American Thoracic Society, Society of Critical Care Medicine

Disclosure: Nothing to disclose.

Francisco Talavera, PharmD, PhD Adjunct Assistant Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

Disclosure: Received salary from Medscape for employment. for: Medscape.

Zab Mosenifar, MD, FACP, FCCP Geri and Richard Brawerman Chair in Pulmonary and Critical Care Medicine, Professor and Executive Vice Chairman, Department of Medicine, Medical Director, Women's Guild Lung Institute, Cedars Sinai Medical Center, University of California, Los Angeles, David Geffen School of Medicine

Zab Mosenifar, MD, FACP, FCCP is a member of the following medical societies: American College of Chest Physicians, American College of Physicians, American Federation for Medical Research, American Thoracic Society

Disclosure: Nothing to disclose.

Ryland P Byrd, Jr, MD Professor of Medicine, Division of Pulmonary Disease and Critical Care Medicine, James H Quillen College of Medicine, East Tennessee State University

Ryland P Byrd, Jr, MD is a member of the following medical societies: American College of Chest Physicians, American Thoracic Society

Disclosure: Nothing to disclose.

Thomas M Roy, MD Chief, Division of Pulmonary Disease and Critical Care Medicine, Quillen Mountain Home Veterans Affairs Medical Center; Professor of Medicine, Division of Pulmonary Disease and Critical Care Medicine, Fellowship Program Director, James H Quillen College of Medicine, East Tennessee State University

Thomas M Roy, MD is a member of the following medical societies: American College of Chest Physicians, American College of Physicians, American Medical Association, American Thoracic Society, Southern Medical Association, Wilderness Medical Society

Disclosure: Nothing to disclose.

Gregg T Anders, DO Medical Director, Great Plains Regional Medical Command , Brooke Army Medical Center; Clinical Associate Professor, Department of Internal Medicine, Division of Pulmonary Disease, University of Texas Health Science Center at San Antonio

Disclosure: Nothing to disclose.

Oleh Wasyl Hnatiuk, MD Program Director, National Capital Consortium, Pulmonary and Critical Care, Walter Reed Army Medical Center; Associate Professor, Department of Medicine, Uniformed Services University of Health Sciences

Oleh Wasyl Hnatiuk, MD is a member of the following medical societies: American College of Chest Physicians, American College of Physicians, and American Thoracic Society

Disclosure: Nothing to disclose.

Semaan Georges Kosseifi, MD Fellow in Pulmonary/Critical Care Medicine, East Tennessee State University

Disclosure: Nothing to disclose.