A patient who is a known chronic alcoholic is admitted to the emergency department. Upon assessment, the nurse notes nystagmus, diplopia, and ataxia. The nurse is correct to suspect
a. dry beriberi.
b. hepatic encephalopathy.
c. riboflavin deficiency.
d. Wernicke-Korsakoff syndrome.
ANS: D
Severe thiamin deficiency occurs most commonly among alcoholics and, in this population, manifests as Wernicke-Korsakoff syndrome. Symptoms include nystagmus, diplopia, and ataxia.
Severe thiamin deficiency produces dry beriberi, which is manifested by anesthesia of the feet, ataxic gait, footdrop, and wristdrop.
Hepatic encephalopathy is manifested by neurologic responses such as loss of concentration and confusion.
Riboflavin deficiency is associated with sore throat and angular stomatitis.
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