HAC Hearing Aid Maintenance & Repair 2

Question 1

A patient reports that their BTE hearing aid sounds distorted after swimming. What is the most likely cause?

Accepted Answer

Moisture damage to the receiver or microphone

Answer

Exposure to water can cause moisture to enter the microphone or receiver, resulting in distorted sound output.

Question 2

Which tool is specifically designed to remove earwax from a hearing aid sound bore without pushing debris deeper?

Accepted Answer

Wax pick or loop tool

Answer

A wax pick or loop tool is designed to hook and remove wax without forcing it further into the sound bore.

Question 3

A receiver-in-canal (RIC) hearing aid stops working after the patient pulls it out by the wire. What component is most likely damaged?

Accepted Answer

Receiver wire connection

Answer

Pulling the device by the thin receiver wire stresses the connection point and commonly causes wire breakage or disconnection.

Question 4

What is the recommended frequency for replacing wax guards in a hearing aid with a receiver in the ear canal?

Accepted Answer

Every 1–3 months or when sound becomes weak

Answer

Wax guards should be replaced every 1–3 months, or sooner if the patient notices reduced sound output.

Question 5

During a visual inspection, you notice green corrosion on the battery contacts of an ITE hearing aid. What should you do first?

Accepted Answer

Clean contacts with a dry cotton swab or contact cleaner

Answer

Green corrosion from battery leakage can be gently cleaned with a dry swab or appropriate contact cleaner before attempting further use.

(HAC) Hearing Aid Certification Practice Test