**Question:** Fix of choice in a chronic alcoholic patient with normal Random Blood Sugar (RBS), normal Urine Nitrogen (UN), but altered sensorium

**Core Concept:** In a patient with altered sensorium, the clinician should consider the potential neurotoxic effects of alcohol consumption, even if the RBS and UN are within normal limits.

**Why the Correct Answer is Right:** The correct answer, option D (intravenous (IV) midazolam), is chosen due to its rapid onset, short half-life, and ability to reverse the sedative effects of alcohol. Midazolam is a benzodiazepine, a class of drugs that act as central nervous system depressants. In a chronic alcoholic patient with altered sensorium, midazolam can effectively reverse the sedative effects of alcohol, allowing for a more detailed neurological examination and potentially saving time during the assessment process.

**Why Each Wrong Option is Incorrect:**

A. Option A (IV thiamine): Thiamine is crucial for the production of ATP in the brain, and its deficiency is associated with Wernicke-Korsakoff syndrome. However, in this case, the patient is a chronic alcoholic and is likely to have already developed Wernicke-Korsakoff syndrome, which would not be reversed by thiamine.

B. Option B (IV glucose): Increased glucose levels are not the primary issue in a chronic alcoholic patient with altered sensorium. The altered sensorium is a result of the depressant effects of alcohol on the central nervous system, not glucose deficiency.

C. Option C (IV fomepizole): Fomepizole is an antifungal agent used in alcohol-induced severe hepatitis and is not relevant to reversing the sedative effects of alcohol on the central nervous system.

**Clinical Pearl:**

In chronic alcoholics presenting with altered sensorium, it is crucial to recognize the neurotoxic effects of alcohol and not confuse them with other potential causes like electrolyte imbalances or Wernicke-Korsakoff syndrome. The correct choice, IV midazolam, should be administered promptly to reverse the sedative effects of alcohol and allow for a more accurate neurological assessment.