Exam Preview for 38625: On-Ear and Test Box Verification of Open Fi

On-Ear and Test Box Verification of Open Fittings

Please note: exam questions are subject to change.

1. According Statisa.com data, what percentage of U.S. hearing aid sales in 2021 were RIC style devices? 21% 51% 81% 100%
2. Which of the following was NOT identified as an acoustic consideration regarding open fittings? Vent effects Tubing length Ear canal properties Acoustic pathways
3. What is the rationale of using stored equalization prior to on-ear open fitting verification? It overcomes head shadow effects It makes the equalization procedure faster It eliminates the risk of patient fatigue It eliminates the risk of having the calibration pulse amplified by the hearing aid during the equalization procedure
4. Which of the following WAS NOT discussed as a method to verify the open-ness of a fitting? REUR vs. REOR Probe tube calibration Occlusion effect test None of these
5. Which three computations are used to convert coupler measurements to Simulate On-Ear measurement? Probe tube calibration, WRECD and tympanometry WRECD, Microphone location effects and probe tube calibration WRECD, microphone location effects and REUR WRECD, microphone location effects and vent correction