Document the direction and intensity of the perceived sound lateralization. Proper lighting is necessary to observe the patient's responses and ensure they remain comfortable throughout the procedure.
Weber Test Procedure Clinical Guidelines: Step-by-Step Protocol for Accurate Hearing Assessment
Before beginning, inform the patient that the test is painless and will involve hearing a humming sound. This phenomenon, known as lateralization, provides the primary diagnostic clue that guides further investigation.
Immediately place the vibrating fork on the midline of the patient's forehead, ensuring consistent contact with the bone. In a patient with unilateral hearing loss, the sound often appears louder in the affected ear if the loss is conductive, or in the better ear if the loss is sensorineural.
Weber Test Procedure Clinical Guidelines: Key Steps and Interpretation
Conversely, sensorineural hearing loss, resulting from cochlear or neural damage, causes the sound to lateralize to the better ear since the damaged ear cannot perceive the vibrations effectively. Interpreting the Results Normal findings reveal sound heard equally in both ears, indicating symmetrical auditory function.
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