Signs
 

Auditory Acuity

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Overview

  • Whispering numbers into a patient's ears can be used as a gross estimate of auditory acuity.
    • How to Assess

    • Whisper numbers into the patient's ear from 1m and ask them to repeat them. Alternatively, rub hair fibres together next to patient's ear.
    • 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, aspirin
    • Tumour - acoustic neuroma, meningioma, SCC, metastasis
    • Idiopathic - Meniere’s disease
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