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Grand Rounds - Hearing Aids, presented in partnership with Purdue University

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1.  The dashed line at the bottom of the SPL-o-gram represents: Hearing loss in dB SPL Average normal hearing in dB SPL Average normal hearing in dB HL Hearing loss in dB HL

2.  The SPL-o-gram shows a patient’s audiogram: In dB SPL In dB HL In dB SPL and inverted In dB HL and inverted

3.  The area on the SPL-o-gram that is audible to the patient is: The area below their audiogram The area to the left of the audiogram The area to the right of the audiogram The area above their audiogram

4.  Which is an example of a frequency lowering method? Frequency compression Frequency transition Frequency transposition Both A & C

5.  What is the maximum audible output frequency? The equivalent of the maximum power output The highest frequency where the output of the hearing aid intersects with the patient’s hearing threshold The point where compression begins The speech energy across the entire frequency range

6.  Considerations for candidacy for frequency lowering include: Configuration and degree of hearing loss Electroacoustic verification (hearing aid’s ability to meet prescriptive targets) Patient’s audibility of high frequency speech sounds All of the above

7.  According to both AAA and ASHA only about ______% of practioners who dispense hearing aids use real ear measures to verify hearing aid fittings. 20% 40% 60% 80%

8.  Evidence of the benefits of performing real ear measures include: Increased patient satisfaction Objective measurement of SPL in the patient’s ear Fewer return visits and avoiding insufficient amount of gain as provided by manufacturer first fit. All of the above

9.  Manufacturer first fit graphs shown on their software indicate: Simulated SPL in the patient’s ear canal Measured SPL in the patient’s ear canal Evidence-based prescriptive gain and output of the hearing aid None of the above

10.  Manufacturer first fit methods generally tend to ________ the hearing aids. Over fit (provide excess gain) Underfit (provide less than the required amount of gain) Provide the appropriate amount of gain according to prescriptive methods Provide appropriate hearing aid output