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Chapter-08 Hypoxemia and Goals of Oxygen Therapy

BOOK TITLE: Oxygen Therapy

Author
1. Jindal SK
ISBN
9788184481976
DOI
10.5005/jp/books/10584_8
Edition
2/e
Publishing Year
2008
Pages
9
Author Affiliations
1. Postgraduate Institute of Medical Education and Research, Chandigarh, India, Postgraduate Institute of Medical Education and Research, Chandigarh, Postgraduate Institute of Medical Sciences, Chandigarh, Punjab, India, Telemedicine Postgraduate, Institute of Medical Education and Research Chandigarh, India, Postgraduate Institute of Medical Education and Research, Chandigarh; Jindal Clinics, Chandigarh, India, Postgraduate Institute of Medical Education and Research Medical Director, Jindal Clinics, Chandigarh, India
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Abstract

Any disorder causing hypoxia, defined as the lack of oxygen at the tissue level, is a potential indication for oxygen administration. Hypoxia can be classified as hypoxaemic or normoxic depending upon the arterial PaO2 level which is either decreased or normal, respectively. Hypoxemic hypoxia can result from decreased inspired oxygen concentration, hypoventilation, and ventilation-perfusion imbalance, Right to Left shunt or diffusion defects. On the other hand, normoxic hypoxia can result from circulatory failure, tissue poisoning, severe anemia or from an increased demand of oxygen.

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