What is the minimum oxygenation target for a patient with altered mental status and suspected ischemic stroke?

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The minimum oxygenation target for a patient with altered mental status and suspected ischemic stroke is an SpO₂ of 94 percent or above. In the context of an ischemic stroke, maintaining adequate oxygenation is critical due to the risk of brain tissue injury from hypoxia. Patients with altered mental status may have impaired ability to protect their airways or manage their breathing, which can lead to decreased oxygen saturation levels.

An oxygen saturation of 94 percent ensures that adequate levels of oxygen are being delivered to vital organs, including the brain. It can help in minimizing secondary brain injury and supporting overall patient stability during transport and treatment.

Lower thresholds, such as those below 94 percent, could suggest inadequate oxygenation, increasing the risk for complications. Therefore, the recommendation to target at least 94 percent strikes a balance between ensuring sufficient oxygen delivery while avoiding unnecessary hyperoxia, which can also be harmful.

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