Hearing Loss Hearing Loss Prevention Test

Question 1

According to OSHA regulations, employers are required to implement a hearing conservation program when employee noise exposure reaches:

Accepted Answer

85 dBA as an 8-hour time-weighted average

Answer

75 dBA as an 8-hour time-weighted average

Answer

95 dBA as an 8-hour time-weighted average

Answer

100 dBA as an 8-hour time-weighted average

Question 2

The noise reduction rating (NRR) on hearing protection devices represents:

Accepted Answer

An estimate of the noise reduction the device provides in decibels under ideal conditions

Answer

The maximum noise level the device can block completely

Answer

The number of hours the device can be worn safely

Answer

The cost rating of the device

Question 3

Which type of hearing protection generally provides the highest NRR?

Accepted Answer

Foam earplugs

Answer

Earmuffs

Answer

Reusable pre-molded earplugs

Answer

Semi-insert earplugs

Question 4

The safe listening time at 100 dB exposure according to WHO guidelines is approximately:

Accepted Answer

15 minutes

Answer

8 hours

Answer

4 hours

Answer

1 hour

Question 5

Which ototoxic medication class is commonly known to cause hearing loss and should be monitored audiologically?

Accepted Answer

Aminoglycoside antibiotics

Answer

Antihistamines

Answer

ACE inhibitors

Answer

Beta blockers

Question 6

Newborn hearing screening programs in the US are designed to identify hearing loss by:

Accepted Answer

1 month of age with diagnosis by 3 months and intervention by 6 months (1-3-6 model)

Answer

Age 5 before school entry

Answer

Age 2 during well-child checkups

Answer

Only when parents report communication concerns