360°medico on Instagram: "The test used to assess brain death, especially in the absence of a brainstem response, is the Caloric Reflex Test, which assesses the synergistic reflex between the inner ear and the eye. The external auditory canal is injected with cold or warm water: When using warm water (44°C), the eye moves in the opposite direction of the water spray, while nystagmus occurs in the same direction as the water spray. When using cold water (30°C), the eye moves in the direction of t

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Caloric Test: Vestibular Testing for Dizziness - Mayo Clinic Press

Caloric Test for Dizziness: My Experience and What to Expect