For an alcoholic patient experiencing confusion and restlessness after 2 days of abstinence, in addition to administering oxygen, you should:

For a patient with a history of alcohol use, experiencing confusion and restlessness after a period of abstinence, the key concern is the possibility of withdrawal symptoms, which can include agitation, confusion, and autonomic instability. Administering oxygen is crucial to support any potential respiratory effects, but addressing destabilizing factors, such as hypotension, is vital.

In this case, treating hypotension with crystalloid fluid boluses is appropriate as it helps to stabilize the patient's hemodynamic status. Alcohol withdrawal can lead to dehydration and electrolyte imbalances, which can exacerbate hypotension. Administering fluids can support blood pressure and improve perfusion, potentially alleviating some of the patient's confusing symptoms.

The other options do not address the immediate physiological needs of the patient effectively. Providing emotional support alone would not address the physiological aspects of withdrawal or any potential dehydration and hypotension. Sedating with Valium, while it may seem to relieve agitation, could mask symptoms without treating the underlying issue, especially if the patient's vitals are unstable. Administering adenosine is appropriate in cases of certain types of tachycardia, which is not indicated in this scenario of alcohol withdrawal. Therefore, treating hypotension with crystalloid fluids is the most logical and