مريض مدمن كحول منوّم. لماذا يُعطى الثيامين قبل محلول السكر؟

Why is thiamine given before a glucose infusion to a patient with alcohol dependence?

1. To prevent Wernicke encephalopathy
2. To increase benzodiazepine absorption
3. To treat liver cirrhosis faster
4. To reduce the risk of later hypoglycaemia

Answer: A) To prevent Wernicke encephalopathy. Glucose given in thiamine deficiency can precipitate Wernicke encephalopathy (confusion, nystagmus, ataxia), so thiamine comes first.