Caloric test. Definition

Medical Definition: caloric test

Vestibular stimulation method to determine the status of each labyrinth separately. Is performed by injecting cold water (30 º C) or hot (44 º C) in the ear canal, causing a nystagmus whose quick shake goes to hearing non-irrigated, proof of cold water and irrigated the of hot. This mechanism works similarly to the slope of the dome caused by an angular acceleration. It is associated with a deviation of the indices in nystagmus slow jog. The intensity of nystagmus and deviation are a function of thermal gradient and the integrity of the ear examined. Also called thermal, or Barany test.

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