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Weber’s Test

 
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Overview

  • The Weber test uses conduction of sound via the forehead to determine the nature of a patient's hearing loss.
    • How to Elicit

    • Place a 256hz tuning fork onto the centre of the patient's forehead, and ask whether they can hear the vibration. If heard, ask on which side the vibration is louder.
    • Interpretation

    • Symmetrical - normal hearing
    • Louder in deaf ear - conductive hearing loss
    • Louder in normal ear - sensorineural hearing loss
    • Causes of Hearing Loss

    • Conductive

    • External auditory canal - wax, foreign body, tumour, otitis externa
    • Middle ear - perforated eardrum, otitis media, otosclerosis
    • Sensorineural

    • Presbycusis (age-related hearing loss)
    • Trauma - noise trauma
    • Inflammation - meningitis, encephalitis, SLE, giant cell arteritis
    • Ototoxicity - gentamicin, frusemide, cisplatin
    • Tumour - acoustic neuroma, meningioma, SCC, metastasis
    • Idiopathic - Meniere’s disease
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