A 35 year old homeless, alcoholic male is in a restroom. He is confused with an unsteady gait, his right eye is deviated and fixed to the lower right, but his left eye is mid-line. Vitals BP 100/82, P 96, R 20. What should you suspect?

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Multiple Choice

A 35 year old homeless, alcoholic male is in a restroom. He is confused with an unsteady gait, his right eye is deviated and fixed to the lower right, but his left eye is mid-line. Vitals BP 100/82, P 96, R 20. What should you suspect?

The situation highlights Wernicke's encephalopathy from thiamine deficiency, a common emergency in chronic alcohol use. The key features are confusion, unsteady gait (ataxia), and ophthalmoplegia or other eye movement abnormalities. Here, the patient is confused, has an unsteady gait, and one eye is deviate and fixed in a position, which reflects impaired extraocular movements. In someone with long-term alcohol use, this combination is classic for Wernicke's, because alcohol disrupts thiamine absorption and utilization, leading to the focal brain dysfunction seen in this condition. While stroke can cause altered mental status and eye findings, the presence of ataxia with ocular motor dysfunction in an alcoholic patient strongly points toward Wernicke's rather than a vascular event. Bell's palsy would present with facial weakness, not this pattern of confusion, ataxia, and eye movement abnormality. Acute intoxication might explain confusion, but it wouldn’t typically produce the specific ophthalmoplegia accompanying ataxia in this context. This is a medical emergency. Treat empirically with thiamine promptly (usually 100 mg IV or IM, ideally before any glucose administration) and arrange rapid transport for definitive care.

The situation highlights Wernicke's encephalopathy from thiamine deficiency, a common emergency in chronic alcohol use. The key features are confusion, unsteady gait (ataxia), and ophthalmoplegia or other eye movement abnormalities. Here, the patient is confused, has an unsteady gait, and one eye is deviate and fixed in a position, which reflects impaired extraocular movements. In someone with long-term alcohol use, this combination is classic for Wernicke's, because alcohol disrupts thiamine absorption and utilization, leading to the focal brain dysfunction seen in this condition.

While stroke can cause altered mental status and eye findings, the presence of ataxia with ocular motor dysfunction in an alcoholic patient strongly points toward Wernicke's rather than a vascular event. Bell's palsy would present with facial weakness, not this pattern of confusion, ataxia, and eye movement abnormality. Acute intoxication might explain confusion, but it wouldn’t typically produce the specific ophthalmoplegia accompanying ataxia in this context.

This is a medical emergency. Treat empirically with thiamine promptly (usually 100 mg IV or IM, ideally before any glucose administration) and arrange rapid transport for definitive care.

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