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ReSound TruFit Earmold Impression Technique

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1.  Generally, the single most important factor that impacts a patients satisfaction with the fit of a custom earmold or custom hearing instrument is: The ear impression The TFTS technician Ear texture Age of patient

2.  Which of the following complaints is NOT likely to be attributed to a poor ear impression? Fit of the hearing instrument is too tight or too loose Hearing instrument feeds back Sound cuts in and out Background noise is too loud

3.  How long does the ear impression need to be in order to build a well fit your earmold or custom hearing instrument? EMI must have an overall length of 20 mm and this should include 4 mm past the second turn in the ear canal EMI must have an overall length of 16 mm and this should include 4 mm past the second turn in the ear canal EMI must be 16 mm long plus 4 mm None of the above. The length of the earmold does not affect the fit of the instrument.

4.  Best practices suggest that which of the following is required when submitting ear impressions? An open-jaw impression for all patients A closed-jaw impression for all patients A set of open- and closed-jaw impressions for all patients A closed jaw impression unless significant canal movement is noted with jaw movement. In which case, a set of open- and closed-jaw impressions is required.

5.  Which of the following is NOT a red flag which should require medical intervention before taking an ear impression? Drainage from the ear Thick, coarse hair in the ear canal A sudden onset hearing loss or rapidly progressing hearing loss during the previous 90 days Acute or chronic dizziness

6.  Which of the following is NOT a reason to retake an ear impression? Canal length too short Missing or poorly defined helix area Impression material pushes past the otoblock Shiny patches in the concha area of the impression

7.  If you are unsure whether the lab can make a proper custom product from your impression what should you do? Nothing, the lab will contact you if they have an issue Write a comment on the order form for the lab to "Do their best" Counsel the patient that once the impressions go to the lab it may take a few times to the get it right Remake the impression

8.  Which are examples of an ideal impression? All areas are filled and there are no welds or voids The helix, concha and other anatomical landmarks are well defined The canal length conforms to the TruFit 16/4 rule All of the above

9.  What is the best way to inform the lab that the provided impression has special circumstances (i.e. constricted canal, malformation, growth in canal, etc) Mark the impression to point out the area of concern Do nothing, the lab has plenty of experience and will know what to do Add comments on the order form A & C

10.  What is the recommended sequence for filling the ear with impression material? Helix, upper concha, lower concha followed by canal Canal , lower concha, upper concha followed by helix Upper concha, lower concha, canal followed by Lower concha, upper concha, helix followed by canal