Basic hearing loss types, audiogram interpretation, and hearing screening concepts a speech-language pathologist needs tested on the Praxis SLP exam.
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- Conductive hearing loss results from a problem in
- The outer or middle ear that blocks sound conduction to the inner ear
- Sensorineural hearing loss results from a problem in
- The cochlea or auditory nerve
- Mixed hearing loss involves
- A combination of conductive and sensorineural components
- A common cause of conductive hearing loss in children
- Otitis media with effusion (fluid in the middle ear)
- A common cause of sensorineural hearing loss
- Damage to cochlear hair cells from noise exposure, aging, or genetic factors
- On an audiogram, air conduction thresholds worse than bone conduction thresholds indicate
- A conductive hearing loss component
- On an audiogram, air and bone conduction thresholds that are equally reduced indicate
- A sensorineural hearing loss
- Hearing threshold levels between approximately 26 and 40 dB HL are classified as
- Mild hearing loss
- Hearing threshold levels between approximately 41 and 55 dB HL are classified as
- Moderate hearing loss
- Hearing threshold levels between approximately 71 and 90 dB HL are classified as
- Severe hearing loss
- Hearing threshold levels greater than approximately 90 dB HL are classified as
- Profound hearing loss
- Pure-tone audiometry measures
- The softest sound intensity a person can detect at specific frequencies
- Speech reception threshold (SRT) measures
- The softest intensity at which a person can correctly identify simple speech material about half the time
- Word recognition score (speech discrimination score) measures
- The percentage of words correctly identified at a comfortable, suprathreshold listening level
- Tympanometry primarily assesses
- Middle ear function and mobility of the tympanic membrane
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