Basic Audiology Exam 3
1.purpose for masking: ensure that the right and left AC/BC
thresholds truly represent the actual ear being tested
2.unmasked bone score only tells us two things:: what mastoid the
oscillator is on, one or both cochlea heard it at that level
3.if the unmasked bone score does not create a significant ABG, then can
you accept it for the test ear?: yes
4.true or false: you can say somebody has a conductive loss or a mixed
loss without a masked bone conduction score: false
5.masking is presented in the to establish threshold in : NTE, TE
6.when the signal from the TE vibrates the skull and stimulates the
cochlea of the NTE: cross-over
7.when the signal from the TE not only vibrates the skull and stimulates
the cochlea of the NTE, but the NTE is sensitive enough to perceive the
signal from the test ear: cross-hearing
8.cross-over and cross-hearing occur via conduction: bone
9.when there is potential for , masking must be used to isolate the
TE from the NTE: cross-hearing
10.the loss of sound energy by either AC or BC as it travels from the TE to
the NTE; the loss of dB in cross-over: interaural attenuation
11.the minimum IA for BC is dB (range - dB) and the minimum IA
for AC is dB (range - dB): 0, 0-10
40, 40-65
12.when to mask for AC thresholds when there is an unmasked BC
threshold-
: AC of TE - BC unmasked e 40 dB
13.when to mask for AC threshold when there is no unmasked BC threshold
: AC of TE - AC of NTE e 40 dB
14.when to mask for BC thresholds: AC of TE - BC unmasked > 10 dB
15.the masking process (AC and
BC) step 1:
step 2:
step 3:
step 4: : determine TE and
NTE find if masking is needed
find IML if masking is used
effectively mask
16.AC pure-tone testing initial masking level formula: IML = HL of NTE +
MEMC (5 dB) + SF (10 dB)
17.BC pure-tone testing initial masking level formula: IML = HL of NTE +
1/
10
, Basic Audiology Exam 3
MEMC (5 dB) + SF (10 dB) + OE (10 dB)
2/
10
1.purpose for masking: ensure that the right and left AC/BC
thresholds truly represent the actual ear being tested
2.unmasked bone score only tells us two things:: what mastoid the
oscillator is on, one or both cochlea heard it at that level
3.if the unmasked bone score does not create a significant ABG, then can
you accept it for the test ear?: yes
4.true or false: you can say somebody has a conductive loss or a mixed
loss without a masked bone conduction score: false
5.masking is presented in the to establish threshold in : NTE, TE
6.when the signal from the TE vibrates the skull and stimulates the
cochlea of the NTE: cross-over
7.when the signal from the TE not only vibrates the skull and stimulates
the cochlea of the NTE, but the NTE is sensitive enough to perceive the
signal from the test ear: cross-hearing
8.cross-over and cross-hearing occur via conduction: bone
9.when there is potential for , masking must be used to isolate the
TE from the NTE: cross-hearing
10.the loss of sound energy by either AC or BC as it travels from the TE to
the NTE; the loss of dB in cross-over: interaural attenuation
11.the minimum IA for BC is dB (range - dB) and the minimum IA
for AC is dB (range - dB): 0, 0-10
40, 40-65
12.when to mask for AC thresholds when there is an unmasked BC
threshold-
: AC of TE - BC unmasked e 40 dB
13.when to mask for AC threshold when there is no unmasked BC threshold
: AC of TE - AC of NTE e 40 dB
14.when to mask for BC thresholds: AC of TE - BC unmasked > 10 dB
15.the masking process (AC and
BC) step 1:
step 2:
step 3:
step 4: : determine TE and
NTE find if masking is needed
find IML if masking is used
effectively mask
16.AC pure-tone testing initial masking level formula: IML = HL of NTE +
MEMC (5 dB) + SF (10 dB)
17.BC pure-tone testing initial masking level formula: IML = HL of NTE +
1/
10
, Basic Audiology Exam 3
MEMC (5 dB) + SF (10 dB) + OE (10 dB)
2/
10
