Thus, the likelihood of hypoxia in conjunction with moderate hypoxemia depends primarily on the integrity of the cardiovascular system. Moderate hypoxemia (PaO 2 45 to 59 mm Hg) may be associated with hypoxia if the cardiovascular system is unable to compensate. Therefore, severe hypoxemia must be corrected immediately. Tissue hypoxia is likely in the presence of severe hypoxemia (i.e., PaO 2 <45 mm Hg). Nevertheless, it is prudent to make a few clinical assumptions based solely on the PaO 2. A precise PaO 2 that will result in hypoxia in all individuals cannot be identified, because various factors (e.g., hemoglobin concentration, oxyhemoglobin affinity, cardiac output) interrelate in a complex manner to deliver oxygen to the tissues. The management of acute hypoxemia certainly has a more emergent focus and will be discussed first.Īs stated previously, the prevention of tissue hypoxia is foremost. Obviously, the goals and objectives of oxygen therapy in the chronic patient are less urgent and focused more on the long term. The management and control of acute hypoxemia and chronic hypoxemia are different.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |