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Audiograms

Audiology Exam 2

QuestionAnswer
What are the four factors that describe an audiogram? 1. Shape of AC thresholds (configuration) 2. Lateralization 3. Degree of Hearing Loss 4. Type of Hearing Loss
Audiometric patterns are described using ________ thresholds Air conduction
Lateralization Comparing the air conduction thresholds of each ear
(Lateralization) Symmetrical Air conduction thresholds in the right and left ear remain within 10 dB of each other
(Lateralization) Unilateral One ear has a defined hearing loss (threshold>25 dB HL) while the other ears thresholds all remain within normal limits
(Lateralization) Asymmetrical Both ears have hearing loss (thresholds>25 dB HL), but thresholds are more than 10 dB different at 3 consecutive frequencies
The _________ of hearing loss is expressed as a range using AC thresholds Degree
Typically the range from best hearing threshold to the worse hearing is considered the _______ Range
Use the audiogram _________ to link the __________ Configuration, severities (Ex: Mild sloping to severe)
How to determine type of hearing loss: Is there any air-bone gap? If the answer is yes, what do you do? Are bone conduction thresholds within normal limits?
How to determine type of hearing loss: Is there any air-bone gap? If the answer is no? Sensorineural hearing loss
How to determine types of hearing loss: Are bone conduction thresholds within normal limits? If the answer is yes? Conductive hearing loss
How to determine types of hearing loss: Are bone conduction thresholds within normal limits? If the answer is no? Mixed hearing loss
The _________ of the audiogram can suggest different etiologies of hearing loss Shape
Name four types of audiogram shapes: • High frequency sloping • 4 kHz Notch • 2 kHz Notch • Cookie-Bite
____________________ is the most common type of hearing loss High-frequency sensorineural hearing loss
In high-frequency sensorineural hearing loss hearing is better in __________ frequencies, and poorer in _______ frequencies Low, high
High-frequency sensorineural hearing loss could suggest? Presbycusis, ototoxicity, and combination of ageing and noise exposure
Presbycusis Age-related hearing loss
Ototoxicity Drug induced hearing loss
A Notched sensorineural hearing loss at 4 kHz is a hallmark of? Noise-induced hearing loss
Humans hear best hearing at _______ ~4 kHz
Frequency getting damaged first from loud noises causes? Notched hearing loss
The 2 kHz bone conduction notch is also known as? (Conductive) “Carhart’s Notch”
2 kHz bone conduction is indicative of? Otosclerosis
Otosclerosis Bony growth on Ossicles which impedes sound transmission through the middle ear
Cookie-Bite Audiogram air conduction thresholds take the shape of a? "U"
Cookie-Bite Audiogram is indicative of ___________ most commonly diagnosed in the pediatric population (sensorineural Genetically related hearing loss
Created by: RachelJClark
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