Normal value of oxygenation index
Dec 29, 2022
Source: Cainiu Health
Dr. Li Man
Introduction
The oxygenation index is normal when it ranges between 423–523 mmHg. The oxygenation index (i.e., partial pressure of oxygen / fraction of inspired oxygen) is an important indicator reflecting respiratory function. Clinically, the oxygenation index is generally used to assess the body's oxygenation status, as the goal of respiratory therapy is to achieve sufficient oxygen supply for cellular oxygenation and energy production, while direct measurement of intracellular oxygenation is not feasible.
In daily life, some people pay special attention to their physical health and regularly go to the hospital for medical checkups to monitor whether any of their health indicators are out of range. The oxygenation index often appears in体检 reports. So what is the normal value of the oxygenation index?
Normal Value of the Oxygenation Index
A normal oxygenation index ranges between 423–523 mmHg. The oxygenation index (i.e., partial pressure of oxygen / fraction of inspired oxygen) is an important indicator reflecting respiratory function. Clinically, the oxygenation index is commonly used to assess the body's oxygenation status. This is because the goal of respiratory therapy is to ensure sufficient oxygen supply for organ and tissue oxygenation to produce energy, yet it is not possible to directly measure intracellular oxygen levels. Generally, an oxygenation index below 403 indicates abnormal oxygenation, and below 322 indicates severe hypoxia. Most critically ill patients require endotracheal intubation and mechanical ventilation. Prior to diagnosis, various tests must be performed, and the oxygenation index typically improves following proper treatment.
The oxygenation index is one of the key goals in respiratory therapy and a crucial parameter in ensuring adequate oxygen delivery to organs and tissues for energy production. Clinically, the oxygenation index reflects overall oxygenation status. However, the entire process involves multiple oxygenation-related parameters, which can be categorized into four types: oxygen pressure and related indices, oxygen content and related indices, oxygen saturation and related indices, and local tissue oxygenation index.
Everyone should pay close attention to their health. If any abnormalities are detected, please seek timely medical examination and treatment to avoid adverse effects on your health. We hope this information has been helpful. Wishing you good health and a happy life!
