To clarify the cause of the dizziness, the doctor may take the blood pressure of the pregnant woman to determine if it is caused by abnormal blood pressure. Routine blood and serum trace element tests are performed to determine if there is anaemia. Blood glucose and electrolyte tests assess the presence of endocrine metabolic disorders. To determine if the lesion is intracranial or cervical, CT, magnetic resonance imaging (MRI) and TCD may be required to determine the location and severity of the lesion.
When an arrhythmia is suspected, the presence, type and severity of the arrhythmia can be determined by electrocardiogram and 24-hour ambulatory electrocardiogram. Otogenic disorders can also be examined by otoscopy and internal otoscopy of the external auditory canal or deep within the ear, as well as vestibular function testing.