Audiometer and Test Environment

Question 1

audiometer requirements

Answer 1

1. Frequency selection (500 to 6,000Hz)
2. Intensity selection (-10dB to 90dB)
3. Ear selection (L or R)

Question 2

the three basic types of audiometers

Answer 2

manual
microprocessor
computer-controlled

Question 3

the most conventional model

Answer 3

manual audiometer

Question 4

advantages of manual audiometer

Answer 4

operator has full control
ability to focus on problem frequencies

Question 5

disadvantages of manual audiometer

Answer 5

subject to human error
poor testing habits
shortcuts

Question 6

“standalone” audiometer that uses a microchip controlled program

Answer 6

microprocessor audiometer

Question 7

advantages of microprocessor audiometer

Answer 7

follows the standardized ANSI testing set
data is recorded and stored automatically
can identify problems during testing

Question 8

disadvantages of microprocessor audiometer

Answer 8

subject to computer error
still need OHCs to review, validate test, & make decisions regarding disposition

Question 9

connected to a computer and utilizes software to interface the audiometric equipment
used throughout DoD

Answer 9

computer-controlled

Question 10

advantages of computer-controlled systems

Answer 10

can connect to single or multiple work stations
conducts one or several tests at once
reduced human error

Question 11

disadvantages of computer-controlled systems

Answer 11

subject to computer errors
requires OHC review
manual override is needed

Question 12

calibrated to the specific audiometer and must not be interchanged

Answer 12

headphones

Question 13

used by the listener to indicate a response
easily damaged
needs to be replaced, not fixed
may be interchanged w/o re-calibration

Answer 13

hand switch

Question 14

used to verify calibration status of the audiometer during daily biological calibration checks

Answer 14

electroacoustic ear

Question 15

database application used to manage the HCP within the DoD

Answer 15

Defense Occupational and Environmental Health Readiness System -Hearing Conservation (DOEHRS-HC)

Question 16

hardware requirements of DOEHRS-HC system

Answer 16

computer system
CCA 200 mini microprocessor audiometer
BAS 200 electroacoustic ear

Question 17

will help determine best type of booth for clinic area

Answer 17

BGN (back ground noise)

Question 18

less expensive and has greater portability
BGN <65 dBA

Answer 18

mini booth

Question 19

heavier walls
BGN 65-79 dBA

Answer 19

standard booth

Question 20

sounds treated enclosure with a van/bus/trailer

Answer 20

mobile booth

Question 21

noise levels inside booth must not exceed

Answer 21

27dB at 500Hz

Question 22

purpose is to standardize output of audiometers worldwide

Answer 22

calibration

Question 23

three types of calibration

Answer 23

annual electroacoustic calibration
biannual exhaustive calibration
daily biological calibration

Question 24

annual electroacoustic calibration
biannual exhaustive calibration are performed by

Answer 24

MERC

Question 25

the exhaustive calibration is performed every ___ in the AF and civilian programs

Answer 25

2 years

Question 26

daily biological calibration is performed by

Answer 26

OHC

Question 27

daily calibration checks are documented on

Answer 27

DD Form 2217

Question 28

who is tasked with certifying booths and how often

Answer 28

BE once a year

Question 29

booth repairs can be facilitated by

Answer 29

medical maintenance or MERC

Question 30

Daily Functional Check

Answer 30

*CUCEFICS* Clean Untangle Connections Earphones Frequency Intensity Crosstalk Static

Question 31

check should be conducted when tones are being presented in the left side

Answer 31

frequency

Question 32

check should be conducted when tones are being presented in the right side

Answer 32

intensity

Question 33

tells us if the equipment is working

Answer 33

daily functional check

Question 34

tells us if equipment is working correctly

Answer 34

daily biological calibration check

Question 35

end of day procedures

Answer 35

back-up data/export to Data Repository must be stored behind two locked doors close program b4 shutting down computer clean area