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25 Cards in this Set
- Front
- Back
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What does a red circle on an audiogram represent?
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air conduction in the right ear
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What does a blue "x" on an audiogram represent?
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air conduction in the left ear
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What is a spondee threshold?
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a threshold of two syllable words with equal stress on each syllable (e.g., hotdog, pancake, etc.)
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How do you calculate the % correct on a word recognition test?
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Total the number of incorrect responses, subtract from the number of words given (25 or 50), and multiply that answer by 4 for a list of 25 or 2 for a list of 50
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What is a cause of a type As tympanogram?
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otosclerosis
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What are some causes of a type Ad tympanogram?
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a break in the ossicular chain, disarticulation of the ossicles
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What are some causes of a type B tympanogram?
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obstruction-cerumen, fluid in the middle ear, perforation of the eardrum
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What is a cause of a type C tympanogram?
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poor Eustachian tube dysfunction
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What is an ABR and what does it tell you?
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ABR stands for Auditory Brain Stem Response. It reflects the neural activity from the VIII cranial nerve to the mid brain.
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What does ECoG stand for and what does it tell you?
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Electrocochleography and it reflects the activity of the VIII cranial nerve and the cochlea.
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What tests are used in universal hearing screenings? Are they subjective or objective?
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OAE and ABR and objective
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What are some signs of auditory processing disorder?
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difficulty following directions, difficulty understanding speech in background noise, impaired ability to attend to auditory information, etc.
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What is the purpose of hearing screenings?
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To assess the hearing of a large group of people quickly; it will tell you those that have normal hearing and those that need an in-depth evaluation.
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What is the ossicular chain?
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the malleus, incus, and stapes
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If you had a person with a 45 dB hearing loss, how would you categorize his/her degree of loss?
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moderate loss
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What is considered a profound hearing loss?
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91 dB or more
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Describe Meniere's Disease.
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Characterized by hearing loss, dizziness/vertigo, tinnitus, feeling of fullness in the ear, usually unilateral, fluctuating, and progressive.
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Describe a Cochleovestibular Schwannoma.
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Characterized by vertigo/dizziness, hearing loss, tinnitus, unilateral, mild and restricted to the high frequency range or severe and word recognition is poor.
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What is the normal score for a spondee threshold?
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within 10 dB of the PTA
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What is a functional hearing loss?
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a non-organic or fake loss, which is really not a loss at all
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Soldiers came back from what war, which began the field of audiology?
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World War II
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What is the main characteristic of a noise-induced hearing loss on an audiogram?
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a dip in the hearing threshold around the 4,000 Hz range
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What is the dynamic range of hearing?
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The range between the threshold of hearing and an uncomfortable loudness level
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What is presbycusis?
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hearing loss due to aging
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In order for there to be a conductive hearing loss, how many dB difference must there be between the air conduction and bone conduction tests?
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at least 40 dB
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