IHS EXAM 2 ALL ANSWERS AND QUESTIONS SET A+
✔✔Sounds from the bone conduction receiver may stimulate the non-test ear at: -
✔✔10 dB or less
✔✔A source of information that helps to identify which ear is responding to bone
conduction stimuli is: - ✔✔-Tympanometry
-Acoustic Reflex testing
-Bone conduction with masking
✔✔Bone conduction testing directly stimulates: - ✔✔The cochlea
✔✔Most conductive losses: - ✔✔-Are medically correctable
-Display a breakdown or obstruction in the middle ear.
-Display good discrimination
✔✔Ambient noise in the environment during bone conduction testing will: - ✔✔Affect
the test results in the lower frequencies.
✔✔During the testing process, it is best to test bone conduction: - ✔✔After air
conduction testing.
✔✔A conductive loss may be caused by: - ✔✔-Perforations of the tympanic membrane.
-Immobile middle ear ossicles
-Otits media
✔✔Bone conduction thresholds worse than air conduction thresholds may be caused
by: - ✔✔-Poor placement of the vibrator
-A skull fracture
-Thickness of the skull
✔✔Sound is being presented to one ear and then routed to the opposite ear is know as:
- ✔✔-Cross hearing
-Shadow hearing
, -Transcranial hearing
✔✔When the better ear answers for the poorer ear what occurs? - ✔✔Shadow Curve
✔✔Which noise is best for masking during pure tone air and bone conduction testing? -
✔✔Narrow band noise
✔✔Effective masking may be described as - ✔✔-An increased masking noise that does
not shift the treshold tone.
- A formula method to determine how much masking noise is appropriate
-A psychoacoustic method like the one proposed by Hood
✔✔Masking is performed during air conduction testing when: - ✔✔-a 40 dB or more
difference occurs between the air conduction threshold of th better ear and the poorer
ear.
-a 40 dB or more difference occurs between the air conduction threshold of the poorer
ear and the bone conduction threshold of the better ear.
✔✔Masking is performed during bone conduction whenever: - ✔✔a 15 dB or more
difference occurs between the obtained bone conduction threshold of the better ear and
the air conduction threshold of the poorer ear.
✔✔The occlusion effect occurs during: - ✔✔Bone conduction testing causing thresholds
to shift due to headphones being placed over the ear.
✔✔A masking delima occurs when: - ✔✔-It is impossible to mask
-The patient displays a bilateral conductive loss
-Masking cannot be completed due to overmasking.
✔✔Undermasking is defined as: - ✔✔Occuring most often during air conduction testing.
✔✔Central masking can effect as threshold by: - ✔✔5 dB
✔✔In sensorineural hearing loss, air conduction thresholds are: - ✔✔The same as bone
conduction thresholds.
✔✔An air-bone gap means the: - ✔✔Air conduction thresholds are worse than bone
conduction thresholds.
✔✔A sensorineural component is the difference between: - ✔✔BC thresholds and the
range of normal hearing.
✔✔A pure conductive loss shows: - ✔✔All bone conduction thresholds are within
normal limits.
✔✔Sounds from the bone conduction receiver may stimulate the non-test ear at: -
✔✔10 dB or less
✔✔A source of information that helps to identify which ear is responding to bone
conduction stimuli is: - ✔✔-Tympanometry
-Acoustic Reflex testing
-Bone conduction with masking
✔✔Bone conduction testing directly stimulates: - ✔✔The cochlea
✔✔Most conductive losses: - ✔✔-Are medically correctable
-Display a breakdown or obstruction in the middle ear.
-Display good discrimination
✔✔Ambient noise in the environment during bone conduction testing will: - ✔✔Affect
the test results in the lower frequencies.
✔✔During the testing process, it is best to test bone conduction: - ✔✔After air
conduction testing.
✔✔A conductive loss may be caused by: - ✔✔-Perforations of the tympanic membrane.
-Immobile middle ear ossicles
-Otits media
✔✔Bone conduction thresholds worse than air conduction thresholds may be caused
by: - ✔✔-Poor placement of the vibrator
-A skull fracture
-Thickness of the skull
✔✔Sound is being presented to one ear and then routed to the opposite ear is know as:
- ✔✔-Cross hearing
-Shadow hearing
, -Transcranial hearing
✔✔When the better ear answers for the poorer ear what occurs? - ✔✔Shadow Curve
✔✔Which noise is best for masking during pure tone air and bone conduction testing? -
✔✔Narrow band noise
✔✔Effective masking may be described as - ✔✔-An increased masking noise that does
not shift the treshold tone.
- A formula method to determine how much masking noise is appropriate
-A psychoacoustic method like the one proposed by Hood
✔✔Masking is performed during air conduction testing when: - ✔✔-a 40 dB or more
difference occurs between the air conduction threshold of th better ear and the poorer
ear.
-a 40 dB or more difference occurs between the air conduction threshold of the poorer
ear and the bone conduction threshold of the better ear.
✔✔Masking is performed during bone conduction whenever: - ✔✔a 15 dB or more
difference occurs between the obtained bone conduction threshold of the better ear and
the air conduction threshold of the poorer ear.
✔✔The occlusion effect occurs during: - ✔✔Bone conduction testing causing thresholds
to shift due to headphones being placed over the ear.
✔✔A masking delima occurs when: - ✔✔-It is impossible to mask
-The patient displays a bilateral conductive loss
-Masking cannot be completed due to overmasking.
✔✔Undermasking is defined as: - ✔✔Occuring most often during air conduction testing.
✔✔Central masking can effect as threshold by: - ✔✔5 dB
✔✔In sensorineural hearing loss, air conduction thresholds are: - ✔✔The same as bone
conduction thresholds.
✔✔An air-bone gap means the: - ✔✔Air conduction thresholds are worse than bone
conduction thresholds.
✔✔A sensorineural component is the difference between: - ✔✔BC thresholds and the
range of normal hearing.
✔✔A pure conductive loss shows: - ✔✔All bone conduction thresholds are within
normal limits.
