AEMCA Practice Exam

Maintaining SpO2 levels within the range of 92-96% is considered ideal according to oxygen standards. This range allows for adequate oxygenation of the body's tissues while minimizing the risk of potential complications associated with both hypoxia and hyperoxia. When SpO2 levels fall below 92%, it may indicate inadequate oxygenation, potentially leading to cellular dysfunction and organ damage. Conversely, maintaining levels above 96% may be unnecessary for many patients and can lead to adverse effects, particularly in patients with certain chronic lung conditions, such as COPD, where high levels of oxygen can suppress the respiratory drive. Therefore, the 92-96% range strikes a balance, ensuring that patients receive sufficient oxygen to meet their physiological needs while avoiding the risks associated with over-saturation. This is why the choice that includes this range is recognized as the ideal target for SpO2 maintenance.