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air-bone gap

   Also found in: Dictionary/thesaurus, Financial, Encyclopedia, Wikipedia, Hutchinson 0.21 sec.
gap (gap) an unoccupied interval in time; an opening or hiatus.
air-bone gap  the lag between the audiographic curves for air- and bone-conducted stimuli, as an indication of loss of bone conduction of the ear.
anion gap  the concentration of plasma anions not routinely measured by laboratory screening, accounting for the difference between the measured anions and cations.
auscultatory gap  a period in which sound is not heard in the auscultatory method of sphygmomanometry.
interocclusal gap  see under distance.

air-bone gap
n.
The difference between the threshold for hearing acuity by bone conduction and by air conduction.


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Outcomes measures included pre- and postmanagement air-conduction pure-tone average (PTA) and air-bone gap (ABG).
(2) In their scheme, cerumen was classified as nonoccluding (<50% blockage of the ear canal), excessive (50 to 80% occlusion but no noticeable conductive hearing loss and an air-bone gap of [less than or equal to] 10 dB at two frequencies), or impacted (>80% occlusion with associated conductive hearing loss and an air-bone gap >10 dB at two or more frequencies).
3%), and the air-bone gap in these 5 ears had improved to 10 dB or less.
 
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