Term
| What kind of topics should you ask about during a case history regarding noise exposure? |
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Definition
-noise monitoring results dBA TWA, dose
-any exposure last week?
-Any noise hobbies?
-Previous noise exposure? Ototoxic exposure?
-If yes, where? Military, other occupation?
-Ask about HPDs? What kind and when? During recreational noise or just at work? |
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Term
| What are some occupational ototoxin exposure? |
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Definition
| Asphyxiants (carbon monoxide), metals (organic tin, mercury, and manganese), solvents (toluene, styrene, xylene), and other things like diesel fuel, jet fuel, etc. |
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Term
| Only ___% of the general population has a non-organic hearing loss |
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Definition
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Term
Noise-exposed HL and non-organic HL:
-___% of compensation claimants
-___% of medico-legal cases of industrial workers
-___% in military personnel |
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Definition
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Term
Case History Considerations:
-___ persons are more likely to present with functional hearing loss
-Persons who report unilateral hearing loss from noise – suspect ___ hearing loss |
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Definition
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Term
Nonorganic Hearing Loss - Considerations:
-Can not get reliable ___ thresholds
-Referred by attorneys, ___ companies, worker ___ boards, etc.
-Referred for ___ reasons (e.g. accidents, pensions,
compensation) |
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Definition
| AC; insurance; compensation; legal |
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Term
| What are some potential sources of unreliable thresholds? |
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Definition
| Test environment (noisy/uncomfortable), no/poor calibration, the tester messed up on setting up the test, giving the test, and/or variable instructions, and other variable associated with person being tested (motivation, TTS, emotional state, etc.) |
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Term
| What is a possible tinnitus test battery? |
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Definition
| minimum masking level, residual inhibition, and hyperacusis testing |
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Term
| Lowest intensity level of a tone or noise that masks tinnitus so listener can not hear tinnitus |
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Definition
| Minimum masking level (MML) |
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Term
-If MML is __-__ dB SL, it is expected that masking will relieve tinnitus
-If MMLs are >__ dBSL, it is NOT expected that masking will relieve tinnitus |
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Definition
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Term
| Temporary reduction of tinnitus after masking |
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Definition
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Term
Residual Inhibition:
-About __% of patients show some residual inhibition
-Procedure: present masker at __ dB above the MML for __ seconds
-It is considered complete residual inhibition if tinnitus ___ ___
-If tinnitus is suppressed, record time it takes to ___ to the original severity |
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Definition
| 90; 10; 60; goes away; return |
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Term
Hyperacusis:
-Associated with ___ use & sensitivity to ___ & ___
-Many with hyperacusis also have tinnitus (__%) and headaches (__%)
-__% of those with hyperacusis have noise exposure |
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Definition
| HPD; light; colors; 86; 49; 40 |
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Term
Hyperacusis – Instructions to Patients:
-Tell patient the goal is to find levels that are so loud that they cause ___ but not ___
-Some have low LDLs, so start at presentation level around ___ dB HL; first use __-dB increments, as approach LDL, use __-dB increments
-Alternative method: use ___ ___ scaling (e.g. Contour test) |
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Definition
| discomfort; pain; 40; 5; 1; categorical loudness |
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Term
| The average LDLs is __ dB HL |
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Definition
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Term
-For those with LDLs <___ dB HL, may be impacted negatively (e.g. less likely to work full time)
-May need to use ___ hearing protection that yields gain for soft inputs but compresses moderate- and high-input levels |
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Definition
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