IHS Instrument Fitting 3

Question 1

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

Accepted Answer

Protect the tympanic membrane from impression material

Answer

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

Question 2

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

Accepted Answer

Behind-the-ear (BTE) with earmold

Answer

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

Question 3

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

Accepted Answer

Smooth peaks in the frequency response

Answer

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

Question 4

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

Accepted Answer

Reduces the occlusion effect and improves high-frequency response

Answer

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

Question 5

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

Accepted Answer

Improved sound localization and speech in noise

Answer

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

IHS - International Hearing Society Practice Test

IHS - International Hearing Society Practice Test

IHS Instrument Fitting 3