Question

mr. stockton is a 64 - year - old man who was admitted to the emergency room with extreme weakness, poor coordination, back - and - forth eye movements, and mental confusion. he had a ct scan to check for signs of stroke, but his results came back normal. after speaking with his family, his doctor learned that mr. stockton has a history of alcohol abuse. based on this information, the physician should test the patient for a deficiency of ________. multiple choice biotin niacin riboflavin thiamin

Explanation:

Thiamin (vitamin B1) deficiency is common in alcohol - abusing individuals. Symptoms of thiamin deficiency include extreme weakness, poor coordination (ataxia), nystagmus (back - and - forth eye movements), and mental confusion (Wernicke - Korsakoff syndrome). Biotin deficiency is rare and usually presents with skin rashes and hair loss. Niacin deficiency causes pellagra (dermatitis, diarrhea, dementia). Riboflavin deficiency leads to cheilosis, angular stomatitis, and photophobia.

Answer:

thiamin