What parameter should be maintained with oxygen therapy in critically ill patients?

In critically ill patients, maintaining an oxygen saturation level between 94% and 99% is essential for ensuring adequate tissue oxygenation while avoiding the potential complications associated with high oxygen levels, such as oxygen toxicity. Aiming for this specific range allows for optimal delivery of oxygen to vital organs while minimizing risks.

Oxygen saturation below 94% may indicate hypoxemia and inadequate oxygen delivery to tissues, which can lead to worsening organ function and increased morbidity. Conversely, levels above 99% could suggest the potential for hyperoxia, which has been associated with negative effects, especially in patients with certain conditions like chronic obstructive pulmonary disease (COPD) or those at risk for oxidative stress.

Therefore, targeting an oxygen saturation of 94% to 99% provides a safe and effective range to balance the need for oxygen delivery and minimize risks, making this choice the most appropriate for the care of critically ill patients.