Audiology Exam 3 Questions and Answers

Audiology Exam 3 Questions and Answers What do behavioral tests measure? - Correct Answer ️️ -A patient's subjective perception of sound What do physiological tests measure? - Correct Answer ️️ -The objective measure of the body's response to sound What are examples of behavioral tests? - Correct Answer ️️ -Pure tone testing Speech audiometry Why are physiological tests needed? - Correct Answer ️️ -With behavioral tests, someone might not raise their hand if they're not confident that they heard it. People could also guess and raise their hand. Behavioral tests mean that someone's threshold might be a little off/not be a true threshold due to these discrepancies in behavioral response. Physiological tests remove that bias of responding to the sound because the body will respond to the tiniest sounds/most subtle changes. That response is measurable and a better indication of what the body responds to even if the client doesn't. Why were physiological tests batteries designed? - Correct Answer ️️ -To aid the audiologist in determining the site of lesion where behavioral tests were difficult to interpret or hard to obtain What does the physiological test battery include? - Correct Answer ️️ -Acoustic Immittance Test Auditory Brainstem Testing (ABR) Otoacoustic Emission Testing (OAE) What does an Acoustic Immittance Test do? - Correct Answer ️️ -Objective measure of middle ear function Can't tell anything about normal hearing--only tells how the ear is functioning! What are types of Acoustic Immittance Tests? - Correct Answer ️️ -Tympanometry Acoustic Reflexes What does Auditory Brainstem Testing (ABR) do? - Correct Answer ️️ -Objective measure of hearing sensitivity and higher-level neurological function up to brainstem Can help determine if neurological pathology like a tumor is growing on the auditory nerve Good way to assess individuals who can't provide reliable behavioral info from pure tone testing Used during newborn infant screenings What does Otoacoustic Emission Testing (OAE) do? - Correct Answer ️️ -Objective measure of biomechanics of inner ear, assessment of cochlear function, and early detection of hearing loss Used during newborn infant hearing screenings What are advantages to using physiological tests? - Correct Answer ️️ -Greater sensitivity and specificity in identifying site of lesion within auditory system Physiological measure rely on recorded changes to body's response to sound (removes subjectivity) Good for hard-to-test populations Adds another piece to the puzzle of determining site of lesion What does Acoustic Immittance Testing refer to? - Correct Answer ️️ -Can refer to acoustic impedance or acoustic compliance/admittance or both What is impedance? - Correct Answer ️️ -Opposition to the flow of energy Unit: ohm What is compliance/admittance? - Correct Answer ️️ -Ease of admission/flow of energy Unit: millimho Compliance = mL or cm cubed Admittance = mmho What is the relationship between impedance and admittance? - Correct Answer ️️ - Reciprocal If one is high, the other is low What do tympanometers typically measure? - Correct Answer ️️ - Compliance/admittance rather than impedance The Acoustic Admittance Battery consists of what tests? - Correct Answer ️️ - Tympanometry Acoustic Reflex Testing (ART) What does tympanometry tell us? - Correct Answer ️️ -If there's an issue with the eardrum itself or behind the eardrum that you can't see Senses how the middle ear is functioning Can tympanometry be used to estimate hearing status? - Correct Answer ️️ -No way!! Never! Back back ye vicious beast!! Can you have normal tympanometry results and still have hearing loss? - Correct Answer ️️ -Yes! A normal tympanogram would just mean that you have normal middle ear function, so it means that the middle ear system will trans