Preventive Maintenance Procedures Flashcards

Which type of hearing aid tubing change is indicated when an audiologist observes yellowing and stiffening of the standard earmold tubing?

Answer: Replace with new standard #13 tubing, as hardening reduces acoustic transmission and comfort

Yellowed, stiff tubing has reduced acoustic flexibility and can crack, causing feedback or sound distortion; replacement restores proper function.

A pediatric patient's BTE earmold requires more frequent replacement than an adult's. What is the primary reason?

Answer: Children's ear canals grow rapidly, causing the earmold to become loose and produce feedback

Rapid ear canal growth in children causes previously well-fitting earmolds to become loose, necessitating more frequent reimpressions.

What is the purpose of performing a listening check with a stetoclip before the electroacoustic analysis during a maintenance visit?

Answer: To quickly identify gross problems such as dead output, severe distortion, or intermittency before objective testing

A listening check provides a rapid subjective screen for major malfunctions, helping prioritize the depth of subsequent objective testing.

Which hearing aid component is most susceptible to damage from improper use of cleaning sprays or alcohol wipes during routine maintenance?

Answer: The microphone inlet and receiver port, as solvents can damage membranes and internal components

Solvents can dissolve microphone membranes and corrode internal receiver components, making these ports the most vulnerable to chemical damage.

An adult patient reports their hearing aid battery life has decreased significantly from the expected duration. Which maintenance factor should be investigated first?

Answer: Battery contact corrosion, high drain features (Bluetooth streaming), or use of incorrect battery size

Premature battery drain is most often caused by increased current demand from features like streaming or by poor contact efficiency from corrosion.

What is the appropriate maintenance protocol when a patient presents with an in-the-ear hearing aid that has been exposed to water submersion?

Answer: Remove the battery, dry the exterior, place in an electronic desiccant dryer, and evaluate electroacoustically before return to use

Water submersion requires battery removal, passive or active drying, and electroacoustic verification before the device is safe to use again.

During a preventive maintenance visit, an audiologist measures a hearing aid's OSPL90 and finds it exceeds the patient's uncomfortable loudness level (UCL). What is the most appropriate action?

Answer: Adjust the maximum output setting in the fitting software to prevent potential loudness discomfort and reduce risk of further hearing damage

OSPL90 exceeding UCL risks discomfort and potential noise-induced damage; output limiting must be adjusted to protect the patient.