What immediate action should be taken if a patient shows signs of confusion postoperatively?

Assessing oxygen saturation and neurological status is crucial in a postoperative setting when a patient exhibits signs of confusion. This immediate evaluation helps determine the underlying cause of the confusion, which may be related to inadequate oxygenation (hypoxia), medication effects, or other complications such as delirium or neurological issues. Oxygen saturation can indicate if the patient is receiving sufficient oxygen, which is essential for cognitive function. Additionally, a neurological assessment can identify any abnormalities such as altered consciousness or focal deficits, guiding further intervention and management.

In contrast, simply administering pain relief medication may not address the root cause of confusion and could potentially mask symptoms that need to be evaluated. Providing reassurance and distraction may be comforting but does not prioritize the necessary immediate assessment of the patient's physiological and neurological status, which is critical for ensuring safety. Waiting for the physician to assess the patient could lead to delays in addressing potentially serious complications that require immediate attention. Thus, the most appropriate and effective initial action is to assess the patient's condition comprehensively.