HAC Hearing Aid Verification & Validation

Question 1

What does 'REM' stand for in the context of hearing aid verification?

Accepted Answer

Real Ear Measurement

Answer

REM stands for Real Ear Measurement, a probe microphone technique that measures acoustic output of a hearing aid directly in the patient's ear canal.

Question 2

The Real Ear to Coupler Difference (RECD) is primarily used to:

Accepted Answer

Convert coupler measurements to predict real ear hearing aid performance

Answer

RECD allows clinicians to convert 2cc coupler measurements to equivalent real ear values, enabling accurate hearing aid prescriptions without requiring lengthy in-ear probe microphone sessions.

Question 3

Which probe microphone measurement verifies that a hearing aid's amplified output matches a prescriptive gain target?

Accepted Answer

Real Ear Aided Response (REAR)

Answer

The Real Ear Aided Response (REAR) measures sound pressure level at the eardrum with the hearing aid active, which is then compared to the prescriptive gain target to verify proper fitting.

Question 4

What is the primary purpose of using a 2cc coupler when measuring hearing aid performance?

Accepted Answer

To standardize electroacoustic measurements in a controlled, repeatable cavity

Answer

A 2cc coupler provides a standardized 2cc cavity approximating the adult ear canal volume, allowing consistent electroacoustic measurements independent of individual ear anatomy.

Question 5

The Abbreviated Profile of Hearing Aid Benefit (APHAB) is best described as:

Accepted Answer

A validated self-report questionnaire assessing hearing aid benefit and residual disability

Answer

The APHAB is a validated 24-item self-report questionnaire that measures the benefit patients receive from hearing aids across four subscales of daily listening situations.

(HAC) Hearing Aid Certification Practice Test

(HAC) Hearing Aid Certification Practice Test

HAC Hearing Aid Verification & Validation