Audiology Health Technician Practice Solution Manual Fully Solved Latest Update

Audiology Health Technician Practice Solution Manual Fully Solved Latest Update What is the acronym for CAOHC? - Answers Council for Accreditation in Occupational Hearing Conservation What is the primary purpose of CAOHC? - Answers It is to implement resources and guidance to facilitate the practice of hearing loss prevention through standardized training and credentialing of OHCs. CAOHC council is comprised of ____ professional organizations. - Answers 9 professional organizations CAOHC provides training for - Answers OHCs, CDs, and PSs CAOHC Certification period is for ____years. - Answers 5 years Hazardous noise exposure can result in both _____ and ______ effects on the individual. - Answers physiological and psychological High blood pressure and increased stress and fatigue would be examples of a (n) ___ effect of hearing loss. - Answers non-auditory Ringing or buzzing in the ears (tinnitus) and difficulty understanding speech would be examples of a (n) effect of hearing loss. - Answers auditory Noise induced hearing loss (NIHL) tends to show a notch at ______Hz. This is considered a _______ pitch sound. - Answers 4000Hz High The clarity or understanding of speech is dependent on good hearing in the ________ frequency range. - Answers high Damage to hearing is a function of both ______ and _______ of the sound. - Answers duration intensity A temporary reduction in hearing that may recover is called a _____ ______ ______. - Answers temporary threshold shift A permanent worsening of hearing is called ____ _____ _____. - Answers permanent threshold shift. NIHL is a common occupational illness and the highest percentage of workers exposed is in ____________________. - Answers manufacturing The three major parts of the ear are the ______,_______ and _______ear. - Answers outer, middle and inner ear The three types of hearing loss are ________. _________. and ________. - Answers conductive, sensorineural, and mixed A __________ hearing loss can be treated and occurs in the outer or middle ear. - Answers conductive Damage to the inner ear or the auditory nerve is a __________ hearing loss and is generally irreversible. - Answers sensorineural When there is a problem in either the outer/middle ear, and the inner ear, this is known as a ____________ hearing loss. - Answers mixed The outer ear is comprised of the ________ or _________ which helps to localize sound, and the ________________ where wax (cerumen) is produced. - Answers pinna or auricle, external auditory canal An ear infection in the outer ear is referred to as ________ ________ and may cause a _____________ hearing loss. - Answers otitis externa conductive Important landmarks to look for when viewing the eardrum are the _________ and the ______________. - Answers head of the malleus cone of light The three ossicles, in order from that attached to the eardrum to the one that enters the oval window, are the ________, the ______________, and the _________________. - Answers malleus (hammer), incus (anvil) stapes (stirrup) The ________ _________ ventilates the middle ear space. - Answers Eustachian tube The ________window is located at the footplate of the stapes and when vibrated sets the cochlear fluid into motion and the __________window functions as a pressure relief port for the fluid. - Answers Oval Round The _______________ system, which is part of the inner ear, controls spatial orientation and balance. - Answers vestibular Cochlear______ ________ stimulated by a shearing action send an electrical impulse to the brain. - Answers hair cells The most common inner ear problem seen in our military and veteran population is ____________________ hearing loss. - Answers noise-induced (sensorineural) Heavy metals, asphyxiants (carbon monoxide), and some medications (diuretics, aminoglycosides, and chemotherapeutics) are called ________________. - Answers ototoxins Source of energy, a vibrating body, a medium, and a ________ are requirements for sound to occur. - Answers receiver When sound waves are forced together creating an area of positive pressure is known as ____________. - Answers compression When sound waves are forced apart creating an area of negative pressure is known as ___________. - Answers rarefraction ___________ is the objective term for the subjective term "pitch". - Answers Frequency Frequency is measured in _________________. - Answers Hertz (Hz) Range of human hearing is ______ to ___________ Hz. - Answers 20 to 20,000 Human range of speech is approximately ______ to________Hz. - Answers 250 to 4000Hz __________ is the objective term for the subjective term "loudness". - Answers Intensity