DOEHRS-HC Exam Questions and Answers with Complete Solutions 100% Correct 2024, Exams of Advanced Education

Download DOEHRS-HC Exam Questions and Answers with Complete Solutions 100% Correct 2024 and more Exams Advanced Education in PDF only on Docsity! DOEHRS-HC Exam Questions and Answers with Complete Solutions 100% Correct 2024 Which Occupational sector accounts for the highest incidence of noise-induced hearing loss? a. Transportation b. Construction c. Mining d. Manufacturing - Correct Answer-d. Manufacturing Noise exposures are considered likely to be harmful if shouting is required in order to communicate to a person ___ feet away. a. 4 b. 3 c. 2 d. 5 - Correct Answer-b. 3 feet pg. 1 professoraxe l The primary role of CAOHC is? - Correct Answer-Advocate for comprehensive programs that promote best practices in occupational hearing conservation. Non-auditory effects of unprotected exposure to hazardous noise include all of the following, except: a. Stress b. High Blood Pressure c. Social Isolation d. tinnitus - Correct Answer-d. tinnitus The seven elements of a model hearing conservation program are: - Correct Answer-1. Noise measurement 2. noise control 3. audiometric Monitoring 4. hearing protection 5. worker training 6. recordkeeping 7. program evaluation pg. 2 professoraxe l c. once a month d. annually - Correct Answer-a. daily prior to audiometric testing Excessive ambient noise can artificially increase hearing thresholds, especially at ____ Hz. a. 1000 b. 500 c. 4000 d. 1500 - Correct Answer-b. 500 Which of the following is NOT an advantage of using a manual audiometer? a. one-on-one testing b. examiner error c. best for hard to test patients d. greater examiner control - Correct Answer-b. examiner error pg. 5 professoraxe l Which of the following is NOT a way to reduce booth ambient noise levels? a. replace fan b. swap out headphones c. replace booth seals d. add insulation behind jack panel - Correct Answer-b. swap out headphones Which is NOT an advantage of a microprocessor audiometer? a. greater examiner control b. can perform multiple tests at one time c. built in calibration and functional checks d. reduces human error - Correct Answer-a. greater examiner control The three tiny bones in the middle ear collectively form the _________? a. ossicular chain pg. 6 professoraxe l b. eustachian tube c. tympanic cavity d. organ of corti - Correct Answer-a. ossicular chain The bones of the middle ear are the (select best answer)? a. malleus, incus, stapes b. maxilla, incus, stapes c. malleus, index, stapes d. maxilla, incus, stapes - Correct Answer-a. Malleus, Incus, Stapes Which part of the ear is affected by hazardous noise exposures? a. outer ear b. inner ear c. middle ear d. central ear - Correct Answer-b. Inner Ear What is the primary function of the inner ear? pg. 7 professoraxe l an STS that doesn't resolve on follow-up testing after auditory rest (>14 hours) and confirmed by the Professional supervisor is called a: a. standard threshold shift b. temporary threshold shift c. permanent threshold shift d. significant threshold shift - Correct Answer-c. permanent threshold shift Sound energy from the test ear that stimulates the non-test ear, so the patient responds to the sound in the non-test ear is called? a. upward spread of masking b. psudohypacusis c. cross-over d. asymmetrical hearing loss - Correct Answer-c. cross-over The threshold bracketing technique is? - Correct Answer-b. Decrease in 10 dB until no response, then Increase in 5 dB increments until reponse pg. 10 professoraxe l The test frequencies required by ANSI S3.21 are? - Correct Answer-500Hz, 1000Hz, 2000Hz, 3000Hz, 4000Hz, 6000Hz Which of these answers is NOT a common concern with manual testing? a. automatic 1000Hz retest b. facial or visual cues c. rhythmic pattern of presenting the tone d. inadequate test instruction - Correct Answer-a. automatic 1000Hz retest Which of the following forms is used to document the baseline audiogram? a. DD 2217 b. DD 2215 c. non-hearing conservation audiogram d. DD 2216 - Correct Answer-b. DD 2215 pg. 11 professoraxe l Which one of the following DOEHRS-HC referral flags may only be determined by careful review of the case history? a. positive STS: conduct follow-up testing b. asymmetric hearing loss c. low- and/or high-frequency hearing loss d. tinnitus - Correct Answer-d. tinnitus Which is NOT a characteristic of a good record? a. brief b. organized c. thorough d. legible - Correct Answer-a. brief A change in hearing threshold (+ or -) relative to the baseline audiogram, of an average of 10 dB or more, at 2000, 3000, and 4000 Hz, in one or both ears is called a ____? a. OSHA-reportable hearing loss b. significant threshold change pg. 12 professoraxe l a. Defense Operational and Environmental Hearing Review System Health Compliance b. Defense Occupational and Emergency Health Reporting System - Hearing Compliance c. Defense Occupational and Environmental Health Readiness System -Hearing Conservation d. Defense Occupational Health Entry and Readiness System - Health Compliance - Correct Answer-Defense Occupational and Environmental Health Readiness System - Hearing Conservation All DOEHRS-HC users must? a. have their own DOEHRS-HC and DOEHRS-HC DR accounts to export and retrieve data b. Share a password, but not their username, with colleagues at the same location c. Share their CAOHC hearing technician certification number, if some forgets theirs d. Use the audiologist's accounts until they are recertified - Correct Answer-a. have their own DOEHRS-HC and DOEHRS- HC DR accounts to export and retrieve data pg. 15 professoraxe l The DOEHRS-HC Data Repository feed information into DOD ____ systems. a. hearing b. review c. occupational d. readiness - Correct Answer-d. readiness When calculating the STS, DOEHRS-HC uses the earliest DD ______ systems. a. 2216 b. 2217 c. 2214 d. 2215 - Correct Answer-d. DD form 2215 Which of the following may a certified occupational hearing conservationist (COHC) not perform? a. schedule hearing services (initial, follow-up) pg. 16 professoraxe l b. diagnose, counsel, and refer as needed c. obtain patient histories d. conduct air-conduction monitoring audiometry - Correct Answer-b. diagnose, counsel, and refer as needed The professional who typically assess workplace noise and makes hearing protection attenuation recommendations is? a. audiologist b. occupational health nurse c. workplace supervisor d. industrial hygienist - Correct Answer-d. industrial hygienist The professional supervisor responsibilities include? a. manage the audiometric monitoring program and determine work-relatedness b. ensure areas are posted with noise hazard signs and personnel comply with regulatory guidance c. maintain appropriate accident and injury logs and perform noise hazard assessments pg. 17 professoraxe l The occupational noise standard falls under which code of federal regulations? a. Title 29 CFR 1960.28 b. Title 29 CFR 1960.25 c. Title 29 CFR 1910.1030 d. Title 29 CFR 1910.95 - Correct Answer-d. Title 19 CFR 1910.95 Which of the Following is not a requirement under 29 CFR 1910.95? a. requires baseline within 6 months of noise exposure b. requires HPD use at a 90 dBA TWA c. requires HPD use at an 85 dBA TWA, if the employee has not received a baseline audiogram d. requires baseline within 3 months of noise exposure - Correct Answer-d. requires baseline within 3 months of noise exposure Which of the following is not a best practice recommendation under NIOSH? pg. 20 professoraxe l a. hearing protection is required for >_ 85 dBA. Must protect to 85 dBA b. baseline audiogram must be completed within 30 days of exposure c. use a 3 dB exchange rate d. permissible exposure limit is 90 dBA TWA - Correct Answer- d. permissible exposure limit is 90 dBA TWA Which of the following facts is NOT true for Noise Reduction Rating (NRR)? a. NRR is an attenuation, or noise reduction value b. NRR is determined under laboratory conditions c. OSHA and NIOSH have developed formulas to de-rate the NRR d. NRR is a good indicator of attenuation in real world settings - Correct Answer-d. NRR is a good indicator of attenuation in real world settings Which of the following facts about level-dependent hearing protection devices (HPDs) is NOT true? pg. 21 professoraxe l a. there is a specialized filter contained within the earplug b. the hearing protector must be medically fit by trained personnel c. the hearing protector improves situational awareness in quiet d. the hearing protector closed mode is used for weapons fire - Correct Answer-d. the hearing protector closed mode is used for weapons fire What is the term for the hearing protection rating achieved with hearing protector fit test equipment? a. noise reduction rating b. standard threshold shift c. individual noise reduction d. personal attenuation rating - Correct Answer-d. personal attenuation rating Prior to fitting an earplug, the OHC should first? a. pull the top of the ear to align the ear canal pg. 22 professoraxe l