Diagnostic findings for benign paroxysmal positional vertigo (BPPV) may include

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Diagnosis is made from the history and examination. In addition to the False sensation of the room spinning or the patient spinning, nystagmus (involuntary eye movements) may be present. An audiogram or other means of hearing testing are used to determine the patient's level of hearing. Many times the hearing will be decreased. Lack of coordination may be detected, along with weakness and unsteadiness in the legs. Additional testing to rule out central nervous system involvement may include a computed tomography (CT) scan of the head, magnetic resonance imaging (MRI) scan of the head, or a magnetic resonance angiogram scan of the brain's blood vessels. Another test is caloric stimulation in which, by means of a syringe, cool water followed by warm water is gently flushed against the eardrum to test eye reflexes. In a normal test, no abnormal eye movements will be observed. During the test, BPPV can be detected if the eyes have sustained involuntary movement from side to side. Blood tests may be ordered to rule out other disease conditions.

Diagnostic Findings for Benign Paroxysmal Positional Vertigo (BPPV) May Include