Respiratory failure

Abstract

The Respiratory Failure concept deals with the presence of difficulties for the respiratory system to perform its most important function, to keep satisfactory gas exchanges. There are several causes of respiratory failure, with different clinical features. The diagnosis of respiratory failure depends on the analyses of oxygen and carbon dioxide levels in arterial blood samples. This article contains a general view about gas exchange physiology and its disorders, that are the basis for understanding the classification and mechanisms involved with the different types of Respiratory Failure. It is also emphasized general aspects dealing with therapeutic issues, such as oxygen-therapy and ventilatory support indications.