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Instrument Fitting Flashcards

7 cards from real IHS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Instrument Fitting flashcards as text

  1. During earmold impression taking, the cotton or foam dam is placed in the ear canal to:

    Answer: Protect the tympanic membrane from impression material

    The dam acts as a barrier to prevent impression material from contacting or damaging the tympanic membrane.

  2. Which hearing aid style is most appropriate for a patient with severe-to-profound hearing loss who also has chronic ear drainage?

    Answer: Behind-the-ear (BTE) with earmold

    BTE with earmold keeps the electronics away from the moist ear environment, making it suitable for patients with ear drainage.

  3. What is the primary purpose of a damper placed in the sound bore of an earmold?

    Answer: Smooth peaks in the frequency response

    Dampers reduce resonance peaks in the frequency response, creating a smoother, more natural sound quality.

  4. A receiver-in-canal (RIC) hearing aid is preferred over a standard BTE for mild-to-moderate loss primarily because it:

    Answer: Reduces the occlusion effect and improves high-frequency response

    Placing the receiver in the ear canal allows for an open fitting, reducing occlusion and improving high-frequency delivery.

  5. When fitting binaural hearing aids, the primary audiological benefit compared to monaural fitting is:

    Answer: Improved sound localization and speech in noise

    Binaural fitting allows the brain to use interaural time and level differences, improving localization and speech understanding in noisy environments.

  6. Which coupler is used as the standard reference cavity for measuring hearing aid output in a test box?

    Answer: 2-cc coupler

    The 2-cc coupler (HA-1 or HA-2) is the industry-standard reference cavity for measuring hearing aid electroacoustic characteristics.

  7. A patient's hearing aid produces an acoustic feedback whistle only when they cup their hand near the ear. The MOST likely cause is:

    Answer: Inadequate feedback suppression for reflected sound

    Cupping the hand reflects amplified sound back into the microphone; if feedback suppression cannot cancel this rapidly enough, oscillation occurs.

How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy

Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

  1. ihsinfo.org — Time limit, test delivery, eligibility, fees, retake policy · verified Oct 2026
  2. myhome.ihsinfo.org — Passing score, retake fee · verified Oct 2026