HAC Hearing Aid Fitting & Adjustment 2

Question 1

Which real-ear measurement verifies that the hearing aid output matches the prescribed target at the eardrum?

Accepted Answer

Real-ear insertion gain (REIG)

Answer

Real-ear aided response (REAR)

Answer

Real-ear unaided response (REUR)

Answer

Real-ear coupler difference (RECD)

Question 2

A patient reports their hearing aid whistles when they cup their hand near their ear. What is the most likely cause?

Accepted Answer

Feedback due to acoustic leakage

Answer

Insufficient amplification

Answer

Dead microphone port

Answer

Low battery voltage

Question 3

When fitting a child with a hearing aid, why is the RECD (real-ear-to-coupler difference) especially important?

Accepted Answer

Children's ear canals produce more gain than a 2-cc coupler predicts

Answer

Children have higher thresholds than adults

Answer

Children require less gain than adults

Answer

Children cannot tolerate probe microphones

Question 4

Which fitting formula is specifically designed for children and incorporates loudness normalization?

Accepted Answer

DSL v5.0

Answer

NAL-NL2

Answer

POGO II

Answer

Berger method

Question 5

A patient with a precipitous high-frequency hearing loss complains that amplified speech sounds 'tinny.' What adjustment should you consider first?

Accepted Answer

Reduce high-frequency gain

Answer

Increase low-frequency gain

Answer

Increase compression ratio

Answer

Switch to a linear processing mode

Question 6

What is the purpose of the 'first-fit' or manufacturer's default program at the initial hearing aid fitting?

Accepted Answer

To serve as a starting point based on audiogram before real-ear verification

Answer

To provide maximum gain immediately

Answer

To permanently program the device without further adjustment

Answer

To test feedback cancellation only

Question 7

A patient's real-ear measurement shows gain 10 dB above the NAL-NL2 target in the 2000 Hz region. What is the appropriate clinical action?

Accepted Answer

Reduce gain in the 2000 Hz channel to match the target

Answer

Leave settings unchanged; the patient will adapt

Answer

Increase compression threshold to compensate

Answer

Switch to a different fitting formula