As a standalone test the caloric can take up to 45 minutes to complete, it is performed with a hearing test (Audiogram and Impedance) and VNG.
A patient undergoing a Caloric test will have video recording goggles placed over the eyes to allow for observations of eye movement. The ears are then individually irrigated with a temperature controlled airflow. NSAudiology uses Air rather than water Calorics. This causes a sensation of rotary vertigo or dizziness which is considered a normal response of the vestibular system. As this is an artificial stimulation of the vestibular system the symptoms of dizziness experienced dissipate within minutes.
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