All are associated with Wernicke’s encephalopathy except
Correct Answer: Cog wheel rigidity
Description: Wernicke's encephalopathy This is an acute reaction to a severe deficiency of thiamine, the commonest cause being chronic alcohol use. Characteristically, the onset occurs after a period of persistent vomiting. The impoant clinical signs are: i. Ocular signs: Coarse nystagmus and ophthalmoplegia, with bilateral external rectus paralysis occurring early. In addition, pupillary irregularities, retinal haemorrhages and papilloedema can occur, causing an impairment of vision. ii. Higher mental function disturbance: Disorientation, confusion, recent memory disturbances, poor attention span and distractibility are quite common. Other early symptoms are apathy and ataxia. Peripheral neuropathy and serious malnutrition are often co-existent. Neuropathologically, neuronal degeneration and haemorrhage are seen in the thalamus, hypothalamus, mammillary bodies and midbrain. Ref: A Sho Textbook of Psychiatry, Niraj Ahuja, 7th Edition, pg. no.38
Category:
Psychiatry
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now