ABA Preventive Maintenance Procedures 3

Question 1

Which environmental condition poses the greatest risk of corrosion to hearing aid battery contacts?

Accepted Answer

High humidity combined with salt from perspiration

Answer

Salt in perspiration combined with humidity accelerates electrochemical corrosion on battery contacts, degrading conductivity.

Question 2

A patient with a behind-the-ear hearing aid complains of reduced volume that fluctuates with head movement. Which maintenance check is most indicated?

Accepted Answer

Inspection of the battery contacts for oxidation or poor connection

Answer

Fluctuating volume related to movement strongly suggests a loose or corroded battery contact causing intermittent electrical connection.

Question 3

What is the correct way to store hearing aids overnight to maximize longevity according to preventive maintenance best practices?

Accepted Answer

In a dry storage case or electronic dehumidifier with the battery door open

Answer

Overnight desiccant storage with the battery door open allows moisture to escape and prevents battery compartment corrosion.

Question 4

Which of the following best describes the function of a wax guard (cerumen filter) in custom in-the-ear hearing aids?

Accepted Answer

It protects the receiver from cerumen ingress, preventing blockage and damage

Answer

Wax guards act as a physical barrier between the ear canal environment and the receiver, extending device lifespan.

Question 5

When should an audiologist recommend earmold replacement rather than continued cleaning and maintenance?

Accepted Answer

When the earmold shows significant shrinkage, cracking, discoloration, or persistent feedback despite proper fit verification

Answer

Physical degradation signs such as shrinkage, cracking, or persistent acoustic feedback indicate the earmold can no longer provide an adequate seal.

(ABA) American Board of Audiology Practice Test

(ABA) American Board of Audiology Practice Test

ABA Preventive Maintenance Procedures 3