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PHA BLK 5 > Audiometer and Test Environment > Flashcards

Audiometer and Test Environment Flashcards

1
Q

audiometer requirements

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

the three basic types of audiometers

A

manual
microprocessor
computer-controlled

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3
Q

the most conventional model

A

manual audiometer

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4
Q

advantages of manual audiometer

A

operator has full control
ability to focus on problem frequencies

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5
Q

disadvantages of manual audiometer

A

subject to human error
poor testing habits
shortcuts

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6
Q

“standalone” audiometer that uses a microchip controlled program

A

microprocessor audiometer

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7
Q

advantages of microprocessor audiometer

A

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

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8
Q

disadvantages of microprocessor audiometer

A

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

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9
Q

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

A

computer-controlled

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10
Q

advantages of computer-controlled systems

A

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

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11
Q

disadvantages of computer-controlled systems

A

subject to computer errors
requires OHC review
manual override is needed

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12
Q

calibrated to the specific audiometer and must not be interchanged

A

headphones

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13
Q

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

A

hand switch

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14
Q

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

A

electroacoustic ear

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15
Q

database application used to manage the HCP within the DoD

A

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

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16
Q

hardware requirements of DOEHRS-HC system

A

computer system
CCA 200 mini microprocessor audiometer
BAS 200 electroacoustic ear

17
Q

will help determine best type of booth for clinic area

A

BGN (back ground noise)

18
Q

less expensive and has greater portability
BGN <65 dBA

A

mini booth

19
Q

heavier walls
BGN 65-79 dBA

A

standard booth

20
Q

sounds treated enclosure with a van/bus/trailer

A

mobile booth

21
Q

noise levels inside booth must not exceed

A

27dB at 500Hz

22
Q

purpose is to standardize output of audiometers worldwide

A

calibration

23
Q

three types of calibration

A

annual electroacoustic calibration
biannual exhaustive calibration
daily biological calibration

24
Q

annual electroacoustic calibration
biannual exhaustive calibration are performed by

A

MERC

25
Q

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

A

2 years

26
Q

daily biological calibration is performed by

A

OHC

27
Q

daily calibration checks are documented on

A

DD Form 2217

28
Q

who is tasked with certifying booths and how often

A

BE
once a year

29
Q

booth repairs can be facilitated by

A

medical maintenance or MERC

30
Q

Daily Functional Check

A

CUCEFICS
Clean
Untangle
Connections
Earphones
Frequency
Intensity
Crosstalk
Static

31
Q

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

A

frequency

32
Q

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

A

intensity

33
Q

tells us if the equipment is working

A

daily functional check

34
Q

tells us if equipment is working correctly

A

daily biological calibration check

35
Q

end of day procedures

A

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

PHA BLK 5 (11 decks)

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