HAC Types of Hearing Loss & Assessment 5

Question 1

Which of the following best describes a mixed hearing loss?

Accepted Answer

A combination of both conductive and sensorineural components in the same ear

Answer

Mixed hearing loss exists when both an air-bone gap (conductive component) and elevated bone conduction thresholds (sensorineural component) are present in the same ear.

Question 2

During pure-tone audiometry, the interaural attenuation for supra-aural earphones is approximately:

Accepted Answer

40–50 dB

Answer

Interaural attenuation for supra-aural earphones is approximately 40–50 dB, meaning sound can cross to the non-test ear at levels 40–50 dB lower than presented.

Question 3

A patient with a conductive hearing loss would most likely demonstrate:

Accepted Answer

Better hearing in noisy environments (paracusis willisii)

Answer

Paracusis willisii is the paradoxical phenomenon where some people with conductive hearing loss hear better in noisy environments because speakers raise their voices.

Question 4

Which acoustic reflex decay finding suggests a retrocochlear lesion?

Accepted Answer

Reflex decay of 50% or more within 10 seconds at 500 Hz or 1000 Hz

Answer

Abnormal acoustic reflex decay (≥50% amplitude reduction within 10 seconds) at 500 or 1000 Hz is a classic sign of retrocochlear (eighth nerve) pathology.

Question 5

For newborn hearing screening, which test is most commonly used in the hospital nursery setting?

Accepted Answer

Distortion product OAEs or automated ABR

Answer

Universal newborn hearing screening programs use DPOAE or automated ABR because they are objective, fast, and do not require behavioral responses from the infant.

(HAC) Hearing Aid Certification Practice Test

(HAC) Hearing Aid Certification Practice Test

HAC Types of Hearing Loss & Assessment 5