Hearing Aid Maintenance & Repair Flashcards

A patient with a behind-the-ear hearing aid complains of intermittent sound cutouts in cold weather. What is the most likely cause?

Answer: Battery voltage dropping in low temperatures

Zinc-air and other battery chemistries lose voltage in cold temperatures, which can cause intermittent cutouts or complete device failure.

What is the recommended method for inspecting the tubing connection between a BTE hearing aid and the earmold?

Answer: Visually inspect for cracks, hardening, and airtight seating at both ends

Visual inspection for cracks, discoloration, and secure seating at both ends of the tubing is the standard non-destructive assessment method.

A patient returns after their ITE hearing aid was repaired for feedback, but feedback recurs within a week. What should the clinician assess?

Answer: Earmold fit and whether the ear canal shape has changed

Recurring feedback after repair often indicates that the shell no longer fits properly, possibly due to ear canal changes from weight fluctuation or aging.

Which of the following best describes the role of the wax guard in a hearing aid?

Answer: It protects the receiver from earwax and moisture ingress

The wax guard (cerumen filter) sits at the receiver opening and prevents earwax and moisture from entering and damaging the receiver.

After reattaching an earmold to a BTE hearing aid, the patient reports a hollow or reverberant sound quality. What is the most likely cause?

Answer: Air gap or improper tubing seating at the earhook or earmold connection

An air gap at the tubing connection creates acoustic leakage that degrades sound quality, producing a hollow or reverberant quality.

A dispensing professional is counseling a patient on hearing aid care. Which advice regarding overnight storage is most appropriate?

Answer: Open the battery door and place in a dry storage container or electronic dryer

Opening the battery door disconnects the circuit and allows moisture to escape; a dry storage container or electronic dryer further protects the device from humidity.

What is the most common reason a receiver-in-canal (RIC) device is sent in for in-office repair rather than factory service?

Answer: Failed receiver requiring replacement with a stock unit

Receivers in RIC instruments are user-replaceable stock components, making receiver swap the most common in-office repair before considering factory service.