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CAOHC EXAM QUESTIONS with 100% Correct Answers Latest updates 2024, Exams of Nursing

CAOHC EXAM QUESTIONS with 100% Correct Answers Latest updates 2024

Typology: Exams

2023/2024

Available from 06/18/2024

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Download CAOHC EXAM QUESTIONS with 100% Correct Answers Latest updates 2024 and more Exams Nursing in PDF only on Docsity!

CAOHC EXAM QUESTIONS with 100%

Correct Answers Latest updates 2024

OSHA TREANING REQUIREMENTS - ANSWER MANDATORY PROGRAM FOR

EMPLYEES WITH NOISE EXPOSURE +85DBA/ EMPLOYER MUST ENSURE

PARTICIPATION

OSHA REQUIREMENT - ANSWER PERSONAL HEARING PROTECTORS

ATTENUATION (NRR CONSEPT AND CALCULATION)

AUDIOMETRICS TESTING PURPOSES, EFFECTS OF NOISE HEARING

IDEALLY TRAINING SHOULD - ANSWER COMPANY SPECIFIC-SHOWCASING

EMPLOYEE AND WORK AREA

RELEVANT, APPLICABLE, CURRENT, ENGANING,DIFERRENT FROM LAST YEARIS

TO MOTIVATE EMPLOYEE TO GHANGE BEHAVIORS

QUALITY TRAINING - ANSWER PROHC,PRIMARY GOAL OVIDE A GREAT

MOTIVATIONAL OPPORTUNITY TO MOTIVATE EMPLOYEE TO GHANGE

BEHAVIORS

POTENTIAL TIPOCS IN ADDITIONAL REQUIRED - ANSWER ANATOMY OF THE

EAR

EFFECT OF NOISE

CONVEY THE EXPERIENCEO F NIHL

OTOTOXINEXPOSURE AT WORK AND HOME

NIOSH 5 PRIMARY BARRIERS - ANSWER COMFORT

CONVENIENCE

COMUNICATION

COST

CULTURE OR CLIMATE

TIPS OF EFFECTIVE TRAINING - ANSWER SPEAK TO THE EDUCATIONAL LEVEL

TAILOR TO THE EMPLOYEEES JOBS

TIME THE TRAINING APPROPRIATELY(10-15MIN)

BE FLEXIBE

COUNSELING IS TRAINING - ANSWER COUNSELING IS MOTIVATIONAL

OPPORTUNITY

EXPLAIN TEST RESULTS AND PURPOSE OF HEARING TEST B SURE TO FOLLOW

PS GUIDELINES

DISCUSS NOISE EXPOSURE AT HOME AND WORK

ADDRESS BARRIES TO USING HPD

CHECK FIT AND SERVICEABILITY OF HPS

PERSONAL DOSIMETRY - ANSWER - CALCULATES NOISE EXPOSURE DIRECTLY

FROM CONTINUOS SOUNDS

- MOST ACURATE METHOD

- REPORTED AS A SINGLE NUMBER I.E 85DBA TWA

DOSIMETRY - ANSWER - MOBIL EMPLOYEE

- VAROUS SOUND LEVELS

- AREA SURVEY REVEALS NEED

USES A SOUND LEVEL METER - ANSWER TYPE I OR TYPE II

AREA NOISE LEVEL - ANSWER ALLOWS THE USERS TO ESTIMATE EXPOSURE

BY MATHEMATICALLY COMBINING

SOUND LEVEL METER - ANSWER - A SCALE AND SLOW RESPONSE

- MUST HAVE 80 - 130 DBA

- TYPE 1 IS PRECISION

CALIBRATE BEFORE EACH USE

AREA NOISE SURVEY PROCESS - ANSWER - MEASURE WHAT EMPLOYEE HEARS

- RECORDS A - WEIGHTED SOUND LEVEL

- INTERVIE A N EMPLOYEE TO DETERMINE DURATION OF EXPOSURE

ESTIMATING EXPOSURE - ANSWER - COMPUTE EXPOSURE FROM FORMULAS

AND TABLES IN CRF

- CAN USE TWA CALCULATOR

DOSIMETER - ANSWER - ACCUMULATES NOISE AND INTEGRATES OVER TIME

- REFLECTS ALL CONTRIBUTIONS TO THE EMPLOYEE NOISE EXPOSURE

PERSONAL DOSIMETERS - ANSWER - DIRECTLY COMPUTER 8 HRS TWA

- MOST DOSIMETERS PROVIDE TIME HISTORY

- SOME HAVE DUAL FUNCTIONS AS SLM TYPE II

DOSIMETER PROCESS - ANSWER - SCHEDULE EVENT DURING TYPICAL

OPERATIONS

- MONITOR FOR A FULL WORK SHIFT

- USE APPROPIATED EXCHANGE RATE 3DB OR 5DB

NOISE CONTROL - ANSWER - ALL OHC ARE CAPABLE OF IDENTIFYING NOISE

OPROBLEMS

- MOST OHC ARE ABLE TO SOLVE SIMPLE NOISE PROBLEMS

ENGINEERING CONTROL - ANSWER --MUST BE ATTEMPED FIRST IF FEASIBLE

- FACILITATES CLEAR SPEECH

- INCREASE SAFETY

- REDUCE COST AND BURDEN

NOISE CONTROL STATEGIES - ANSWER - SOURCE

- PATH, SOUND ABSORBING MATERIALS

- RECIEVER,BOOTH CONTROL ROOM, ADMINISTRATIVE CONTROLS

PERSONAL HEARING PROTECTORS FALL INTO THIS CATEGORY

OSHA ACTION LEVEL - ANSWER - 85 DBA TWA,AVERAGE UNPROTECTED

EXPOSUREOVER 8 HRS PERIOD TWA

- ANNUAL TRAINNING

- ANNUAL AUDIOMETRIC MONITORING

AVAILABILITY OF HEARING PROTECTIVE DEVICES

OSHA PERMISSABLE EXPOSURE LEVEL - ANSWER 90DBA OVER AN HRS

PERIOD

- EXANGE RATE 5 DBA

- NO UNPROTECTED EXPOSURE ABOVE 115 DBA

- MANDATORY OVER 90 DBA TWA

NOISE EXPOSURE DOSE - ANSWER - MAY BE EXPRESED IN A PERCENTAGE

DAILY DOSE

- 100% DOSE IS ALLOWABLE DAILY EXPOSURE EQUALTO THE PEL

- A 100% DOSE PER OSHA WOULD BE A TWA OF 90 DBA

AGE CORRECTION - ANSWER CALCULATIONS ARE BASEDON STATITICAL DATA

FROM A NON NOISE EXPOSURE

RECORDABILITY - ANSWER - THE EMPLOYEE AUDIGRAM REVEALS STS OF 10

DB

- THE STS DETERMINED TO BE WORK RELATED

- THE STS MUST BE RECORDER THE OSHA 300 LOG

AVERAGE HEARING LEVEL - ANSWER - HL AT 2000,3000,4000 MUST BE

GREATER THAT 25DB

- AVOIDS RECORDING INJURY ILLNESS WHEN HEARING IS NORMAL

RECORDABILITY SUMMARY - ANSWER - 21 DAYS TO NOTIFY EMPLOYEE IN

WRITING STS

- 30 DAYS TO RETEST BEFORE THE STS HAS TO BE RECORDER

AUDIOGRAM - ANSWER - SHOWS EMPLOYEE HEARING THRESHOLD

LEVELS(HTL)

- MAY BE A GRAPH WITH SYMBOLS

AUDIOGRAM SYMBOLS - ANSWER - CIRCLE FOR RIGHT EARS

- USE X FOR LEFT EARS

OUDIOMETERS TYPE - ANSWER MICROPROCESSOR-TEST IS COMPUTER

CONTROLLED

MANUAL- TESTER IS IN CONTROL,NOT AUTOMATED

MICROPROCESSOR AUDIOMETER

ADVANTAGES - ANSWER MAY PERFORM MULTIPLEHEARING TEST AT THE

SAME TIME

- REDUCE HUMAN ERRORS

- REQUIRES LTTLE SKILL

MICROPROCESSOR AUDIOMETER

DESADVANTAGES - ANSWER - MORE EXPENSIVE THAT MANUAL

- DIFFICULT FOR SOME EMPLOYEES

- DATA IMPUT MAY BE TIME CONSUMING

MANUAL ADIOMETER ADVATENGES - ANSWER - GREAT EXAMINATOR

CONTROL

- ALLOWS RETEST ON ONE OR MORE FREQUENCIES

- LEAST EXPENSIVE

- ONE ON ONE TESTING

BEST METHOD TO FOR HARD TO TEST EMPLOYEES

MANUAL ADIOMETER DISADVATENGES - ANSWER - GREAT CHANCE OF

EXAMINER ERROR

- LIMITED TO TEST ONE EMPLOYEE AT THE TIME

- MAY BE MORE TIME CONSUMING

REQUIRES MORE EXAMINER SKILLS

WHEN IS MANUAL AUDIOMETRY IS APPROPIATED - ANSWER SUBJECT HAS

DIFFICULTY UNDERTANDING INTRUCTIONS

- MOTOR SKILL CHALLENGES HAND SWITCH

- TINITTUS

- DISTRACTION LACK OF FOCUS SLEEPINESS

EARPHONES - ANSWER - NEVER REPLACE THE ERAPHONES WITHOUT HAVING

A NEW EXAHUSTIVECALIBRATION PERFORM

- MECHANICAL SHOCK ,FROM BEING DROPPED MAY ALTERATED THE

CALIBRATION OF THE EARPHONES

WHO MAY PERFOM AUDIOMETRY? - ANSWER - LINCESED

AUDIOLOGIST,OTOLARYNGOLOGIST OR PA

- TECH WHO OPERATES MICROPROCESSOR

FUNCTIONAL CALIBRATION - ANSWER REQUIRES DAILY IF AUDIO IS

CONDUCTED

- HAS TWO PARTS, LISTENING AND VISUAL

LISTENING CHECK - ANSWER THE EARPHONE IS THE MOST SENSITIVE PART

OF THE SYSTEM AND MOST LIKELY TO MALFUNCTION

- AVOID SHORTCUTS

LISTENING CHECK DIAGNOSIS - ANSWER - LOSS OF TONE, CHECK FOR BREAKS

- STATIC-CHECK FOR BROKEN FRAYED

- CHECK FOR RIPPED SHEATH-

BIOLOGICAL CALIBRATION - ANSWER - REQUIRED DAILY BEFORE

AUDIOMETRY IS CONDUCTED

-

BIO ACUSTIC SIMULATOR - ANSWER ARTIFICIAL EARS IN LIEU OF A HUMAN

SUBJECT

ACOUSTICAL CALIBRATION - ANSWER REQUIRED ANNUALLY OR IF

EQUIPMENT FAILS DAILY BIOLOGICAL CALIBRATION

EXHAUSTIVE CALIBRATION - ANSWER REQUIRED EVERY 2 YEARS OR IF

EQUIPMENT FAILS ANNUAL ELECTRO ACOUSTICAL CALIBRATION

TINNITUS - ANSWER ringing or buzzing in the ears. HEARING THRESHOLDLEVEL (HTL) - ANSWER IS DEFINE AS THE LOWEST INTENSITY LEVELTO WICH THE SUBJECT RESPOND AT LEAST 50% OF THE TIME

PROBLEMS THAT AFFECT AUDIOMETRY - ANSWER - FATIGUE

- TINNITUS

- MANUAL CORDINATION

- SUBSTANCE USE

- WAX IMPACTION

- ANXIETY ANS CLAUSTROPHOBIA TEST ALONE

FEDERAL VS STATE LOCAL - ANSWER FEDERAL REGULATION ARE MINIMUM

REQUIREMENT

- STATE AND LOCAL REGULATIONS MAY BE MORE CONSERVATIVE

HPD - ANSWER HEARING PROTECTIVE DEVICE

OPSHA REQUIREMENTS - ANSWER EMPLOYER SHALL PROVIDE A VARIETY OF

CHOICES APPROPRIATE FOR ESPECIFIC WORK ENVIROMENT

MSHA REQUIREMENTS - ANSWER - CONDITIONS FOR USE ARE THE SAME AS

OSHA

- CHOICES MUST INCLUDE 2 TYPES EACH PLUGS AND MUFFS

TYPES OF HPD - ANSWER - EARMUFFS

- EARPLUGS

- CUSTOM MODELS

- EAR CANAL CAPS

- THE BEST PROTECTION IS THE ONE THAT IS WORN AND WORN PROPERLY

HPD SELECTION - ANSWER - FIT COMFORT/EMPLOYEE PREFERENCE

- COST

- REPLACEMENT, CARE AND USE REQUIREMENT

DOUBLE HEARING PROTECTION - ANSWER - DOES NO RESUL IN DOUBLE

ATTENUATION

- ADD 5 DB TO THE HIGHEST NRR

- NIOSH RECOMMENDS AT 100 DBA

OCCLUSION EFFECT - ANSWER ABLE TO TALK TO YOU SELF AND HEARD

YOUSELF/INSIDE

EARMUFFS - ANSWER - MUFF CUSHIONS MUST FROMSEAL Against face

  • FIT OVER EARS
  • CARE AND HYGIENE EARMUFFS ADVANTAGES - ANSWER - ONE SIZE FIT ALL
  • LONG LASTING
  • MORE PREDICTABLE ATTENNUATION
  • RECOMMENDED WITH UNTRAINED PERSONNEL EARMUFFS ADVANTAGES - ANSWER - BULKY
  • UNCONFORTABLE IN HEAT
  • EXPENSIVE

- DIFFICULT TO WEAR WITH GLASSES

EARPLUGS - ANSWER - FORMABLE

- PREMOLDED

- FOAMS

EARPLUGS ADVANTAGES - ANSWER - SMALL PORTABLE

- LESS EXPENSIVE

- ACCOMMOATE HARDHATS GLASSES ETC

EARPLUGS DISADVANTAGES - ANSWER - DIFFICULT TO MONITOR

- POTENTIAL FOR INFECCION

- REQUIRE MORE SKILL TO FIT

FORMABLE EARPLUGS - ANSWER ADVANTAGES,COMFORTABLE IF INSERTED

DISADVANTAGES-ATTENIUATION DEPENS HIGHLY ON POPRERINSERTION

- EDUCATIONAL IS CRITICAL

HEARING AIDS IN NOISE - ANSWER - HEARING AIDS SHOULD NOT BE TURNED

ON IN PRESENCE OF HIGH NOISE LEVEL

- HEARING AIDS MAY BE WORN UNDER EARMUFFS UNDER SOME CAREFULLY

SUPERVISED CONDITIONS

OHC ROLE INTHE HPD PROCESS - ANSWER - PERFORM OTOSCOPIC EXAM

- CHOOSE APPROPIATED HPD

- OFFER ORIENTATION AND TRAINING

- ENGOURAGE EMPLOYYE TO BRING HPD AUDIOMETRIC EVALUATION AN

TRAINING SESSION

OTOSCOPIC INSPECTION - ANSWER - PURPOSE CONFIRM EAR CANAL IS CLEAR

OF OVIOUS INFECTION,

- ALWAYS STOP IF IS PAINFUL AN REFER A PATIENT AS DIRECTED TO PS

UNILATERAL LOSS - ANSWER IF NEITHER EAR IS NORMAL BUT ONE IS WORSE,

LOSS CALLED ASYMMETRIC

- NOT USSUALLY CAUSE BY NOISE EXPOSURE

Conductive hearing loss - ANSWER occurs when there is a problem conducting sound waves anywhere along the route through the outer ear, tympanic membrane (eardrum), or middle ear (ossicles). Sensorineural hearing loss (SNHL) - ANSWER is a type of hearing loss, or deafness, in which the root cause lies in the inner ear (cochlear), vestibulocochlear nerve (cranial nerve VIII), or central processing centers of the brain. BONE CONDUCTING TESTING - ANSWER *INNER EAR THRESHOLDS ARE OBTAINED VIA BONE OSCILLATORPLACED ON MASTOID

  • AIR BONE GAP,MORE THAT DB DIFFERENCE BEETWEEN THRESHOLD OBTAINED BY BONE CONDUCTION AND BY AIR CONDUCTION AUDIOMETRY TECHNIQUE - ANSWER - CALIBRATE DAILY
  • OBTAIN AURAL
  • PERFORM OTOSCOPIC EXAMINATION

- PLACE EARPHONES ON SUBJECT

- ACCURATELY RECORD AUDIOMETRY RESULTS

BEFORE TEST PLACING EARPHONES - ANSWER - REMOVE HEARING AIDS

- PUSH HAIR AIR AWAYFROM EAR CANAL

MANUAL AUDIOMETRY - ANSWER - TEST BOTH EARS AT ALL TEST

FREQUENCIES

- ALWAYS USE PULSED TONE

- PRECENT THE TONE FOE 1-2 SECONDS

(2- 3 FLASHES OF THE SIGNAL LIGHT)

AUDIOMETER OPERATION TEST - ANSWER - TEST BETTER EAR FIRTS

- SELECT FREQUENCY 1000HZ ALWAYS FIRTS

IMPORTANCE OF RECORDS - ANSWER - ACCURATE INDENTIFICATION

- ASSES EFFECTIVSNESS OF HCP

- RESPOND YO OSHA INSPECTOR REQUEST

CHARACTERISTICS OF GOOD RECORDS - ANSWER - ACCURATE

- THOROUGH

- ORGANIZED

- LEGIBLE

AUDIOMETER RECORDS - ANSWER - NAME AND JOB CLASSIFICATION'

- DATE OF AUDIOGRAM

- EXAMINERS NAME

- DATE OF LAS CALIBRATION

- EMPLOYEE MOST RECENT NOISE EXPOSURE ASSESMENT

RECORDS RETETION - ANSWER - NOISE EXPOSURE ,DOCUMENTS 2 YEARS

- AUDIOMETRIC RECORDS DURATION OF EMPLOYMENT

NIOSH RECOMM RECORDS RETETION - ANSWER - NOISE EXPOSURE 30 YEARS

- AUDIOMETRIC DURATION OF EMPLYMENT PLUS30 YEARS

AUDIOMETRIC CALIBRATION 5 YEARS

TRAINING RECORDS RETENTION - ANSWER - OSHA REQUIRED RETENTION

(NONE)

- NIOSH RECOMENT DURATION OF EMPLOYEE PLUS 1 YEAR

- DURATION OF EMPLOYMENT PLUS 30 YEARS

INDUSTRIAL HYGIENIST - ANSWER - RFESPONSABLE FOR NOISE HAZARD

EVALUATION OF WORKSITE

- WHO NEEDS TO BE INCLUDED IN HPC

- APPROPIATED ATTENUATION

CAOHC - ANSWER COUNCIL ACREDITATION IN OCCUPATIONAL HERING

CONCERVATION

CAOHC MISSION - ANSWER PROMOTE HEARING LOSS PREVENTION BY

ENHANCING THE QUUALITY OF OCCUPATIONAL HEARING LOSS PREVENTION

PRACTICES

WHAT DOES CAOHC DO - ANSWER - *TRAIN AND CERTIFYOHC AND COURSES

DIRECTIONS

- SET STANDARS AND APPROVEOHC COURSE

- PROMOTE BEST PRACTICES IN OCCUPATIONAL HEARING CONSERVATION

EFFECT OF NOISE - ANSWER - PHYSIOLOGICAL-NOISE INDUCE HEARING LOSS

- PSYCHOLOGICAL- CASN STARTLE, ANNOY DISTRUP CONCENTRARTION SLEEP

EARLY SING OF NIHL - ANSWER - DIFFICULTY UNDERSTANDING

CONVERSATIONS

- BLOCKED STUFFY SENSATIONS IN EARS

- RINNING OR BUZZING IN THE EARS(TINNITUS)

CHARACTERISTICS OF NIHL - ANSWER - USUALLY BILATERAL, ALWAYS

SENSORIAL

- AFFECT HIGH FREQUENCES NOTCH 4000HZ

- LOSS USUALLY NOT GREATER THAT 75 DB

- LOSS GREATER IN FIRST 10 - 15 YEARS

CHARACTERISTICS OF NIHL - ANSWER TEMPORALY HEARING THRESHOLD

SHIFTS

(TTS) BECOME PERMANENT THRESHOLD SHIFTS(PTS)

WITH EXPOSURES TO NOISE

30 MILLIONS - ANSWER ARE EXPOSED TO HAZARDOUS NOISEIN THE

WORKPLACE WITH ANOTHER 9 MILLIONS EXPOSED TO OTOTOXINS

OUTER EAR PROBLEMS - ANSWER - CERUM IMPACTION

- OTITIS EXTERNAL

- FOREIGN BODY

- CAUSES OF CONDUCTIVE HEARING LOSS

OSSICLES - ANSWER - ARE THE SMALLESTBONES IN THE BODY (EAR)

MIDDLE EAR PROBLEMS - ANSWER - OTITIS MEDIA

- CHOLESTEATOMA GROWTH IN MIDDLE EAR

- CAUSES CONDUCTIVE HEARING LOSS

INNER EAR PROBLEMS - ANSWER - NOISE INUCED HEARING LOSS

- OTOTOXITY-CHEMICAL INDUCED

- CAUSES PERMANENT HEARING LOSS

OTOTXINS - ANSWER - CAUSE SENSORINEURAL HEARING LOSS

- ORGANIC SOLVENTS, HAEVY METALS,ASPHYXIANTS,MONOXIDE

WORKING DEFININITION FOR HEARING CONSERVATION - ANSWER ANY

PRESSURE CHANGE IN AIRWATER OR OTHER MEDIUM WICH HUMANEAR CAN

DETECT

PROPERTIES OF SOUND WAVES - ANSWER - COMPRESSION=AREA OF POSITIVE

PRESSURE

RAREFACTION=AREA OF NEGATIVE PRESSURE

- ENTIRE CYCLE EQUALS ONE PERIOD

PROPERTY OF SOUNDS - ANSWER - FREQUENCY=CORRESPONDS TO PITCH

- INTENSITY=CORRESPONDS TO LOUDNESS

- DURATION=CORRESPONDS TO TIME

FREQUENCY - ANSWER - *NUMBER OF CYCLES PER SECOND

- UNITS OF MEASUREMENT HERTZ-OR HZ

- RANGE HUMAN HEARINGS 20-4000HZ

BEST IS FROM 500TO 4000HZ

INTENSITY - ANSWER LOUDNESS=AMPLITUDE OF SOUND WAVE

IMPULSE IMPACT NOISE - ANSWER CONSIDERATE HAZARDOUS AT 140 DBP

OR GREATER

A-WEIGHTING - ANSWER - IS USED TO FILTER A MEASURED SOUND TO

CAPTURE SOUND CONSIDERATE TO BE HAZARDOUS TO HEARING

NOISE EXPOSURE HAS TO COMPONENTS - ANSWER - LEVEL=DBA

- DURATION=TIME THAT THE PERSONIN IN THE PRESENCE OF THE NOISE

40 HRS AT 90DBA= 1SHOT FROMA RIFLEE

EXCHANGE RATE - ANSWER - REFLECTS THE RELATIONHIP BEETWEEN

ALLOWABLE EXPOSURE TIMES AND SPECIFIC NOISE LEVEL

- WHEN EXPOSSURE LEVELINCREASED 5DBA ALLOWABLE EXPOSURE TIME

HALVED

- TWA - ANSWER IS A NOISE EXPOSURE METRIC, ASSUMES A SPECIFIC EXANGE

RATE