This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: ENT
[{'content': 'Which of the following condition is diagnosed by Hallpike test? \nSelect and explain. \nA. BPPV, B. Sensorineural hearing loss, C. Conductive hearing loss, D. Otosclerosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Benign paroxysmal positional veigo (BPPV) is diagnosed by observing a characteristic nystagmus (latent, geotropic, fatigable) when performing the Dix-Hallpike test. BPPV is one of the most common types of peripheral veigo, arising as a result of debris in the posterior semicircular canal. Patients complain of veigo lasting seconds, with no associated hearing loss when in ceain positions.', 'role': 'assistant'}]