CAOHC Test - Questions with Verified Answers What is a general rule of conductive hearing loss? Flat and often worse at low frequencies What would be an ... [Show More] indication of an advanced stage noise induced hearing loss? A notch configuration progressing to a high-frequency slope Mixed hearing loss is a combination of what? Conductive and sensorineural components What is a symptom of sensorineural hearing loss? Difficulty discriminating speech or tinnitus What is a symptom of conductive hearing loss? Fullness, pressure, muffled hearing and clarify when sound is loud enough Peripheral functions are those associated with the? Cochlea Conductive disorders are typical to which site of lesion, in contrast to NIHL? Outer and middle ear Serial audiogram configurations typically shows: Numerical What is the audible frequency range at birth? 20-20,000 Hz Low/high frequency Hz is subjectively interpreted as what? Low and high pitch Frequency is subjectively interpreted as? Pitch and the number of cycles per second What is the speech range for most communication? 250- 4,000 Hz Low/high intensity (dB) is subjectively interpreted as? Low/ High loudness (intensity corresponds to loudness) The Action level is at what dB? (requires HCO implementation i.e. hearing testing, program inclusion, hpd) 85 dB Permissible exposure level is at what dB? 90 DB What is the concept of steady state noise? Long duration (>.5) i.e engine noise What is the concept of intermittent noise? Noise that comes and goes and is sometimes cyclical (i.e vehicle warning backup noise or hydraulic lift) What is an example of an impact noise? Hammer to nail What is an example of an impulse noise? Gunshot dB (A) is used for? OSHA, MSHA, FRA, DoD compliance in hearing conservation. 0 dB HL does not mean what? It does not mean that there is no sound at that level What HL (hearing level) scale is constructed to represent the average softest sound a young adult can hear at each test frequency? 0 dB HL 0-25dB HL represents what? Normal hearing range 90 dB HL represents what? Typically the highest output level on a pure tone air conduction screening audiometer [Show Less]
