ILE Exam Hearing Aids Questions with 100% correct Answers

Hand Cupped Behind Ear - ANSWER--first Hearing Aid -increased sound by 5-8db -included horns,trumpets, speaking tubes 1892 - ANSWER--carbon amplifiers patent by Alexander Bell -marketed until 1930;first patent for a telephone type hearing instrument 1920 - ANSWER-large vacuum tubes; not portable 1938 - ANSWER-miniature vacuum tube ;crystal receivers 1930 - ANSWER-diameter reduced 1940 - ANSWER-bone conduction receivers were introduced 1946 - ANSWER-first telecoil introduced 1950 - ANSWER-bodyworn HA became convenient size 1948 - ANSWER-transistor invented 1954 - ANSWER-eyeglasses aids introduced 1974 - ANSWER-microphones electrets were introduced 1964 - ANSWER-intergrated circuit(transistors, resistors, wiring...) 1952 - ANSWER-first transistors The Most Important function of the oval window is to : - ANSWER-transfer vibration from the ossicular chain Hair Cells a rise from the layer on top of the : - ANSWER-organ of corti The theory of hearing that is considered the most accurate is : - ANSWER-Place Theory, Volley Theory, Temporal Theory The Three semicircular canals are: - ANSWER-1)90degress angle to one another 2)superior,posterior, and lateral 3)detectors of rotational movement in any direction The average length of an uncoiled basilar membrane is - ANSWER-35mm The name given to the nerve cells connecting the organ of corti to the 8th cranial Nerve is : - ANSWER-Spiral Ganglia The Theory of hearing that describes the cochlea as consisting of nerve ending with hair cells that respond to specific frequencies: - ANSWER-The Place Theory The basilar membrane is located: - ANSWER-In the scala media Sounds appear to be louder when both ears hear together because of: - ANSWER-binaural summation Collectively the semi circular canals are called the - ANSWER-vestibular system The inability of the brain to accurately process auditory stimuli is called a - ANSWER-Central Hearing Loss A Congential hearing loss : - ANSWER-is always present @ or near birth Tinnitus is most common in : - ANSWER-SNHL sensorineural hearing loss A small increase in intensity that results in a large increase in perceived loudness is call: - ANSWER-recruitment A central hearing loss involves the : - ANSWER-cochlea& auditory nerve Common symptoms of Meniere's syndrome include: - ANSWER-tinnitus, vertigo, hearing loss Acoustic trauma is caused by : - ANSWER-sudden impact noise Noise in the head such as roaring, hissing, buzzing or ringing is called: - ANSWER-tinnitus Hearing loss from noise exposure is usually due to: - ANSWER-cochlear hair cell damage A damaged Organ of Corti can cause a : - ANSWER-SNHL Carbon Amplifiers - ANSWER-provided enough gain to help many people Vacuum tube amplifiers of the 1920's - ANSWER-were not portable The miniature vacuum tube of 1938 - ANSWER-allowed powerful hearing aids to be body Inflworn the first head worn hearing aid was - ANSWER-eyeglass aids Electricity is - ANSWER-the flow of electrons Voltage can be equated to - ANSWER-pressure Semi conductors are devices that: - ANSWER-allow part of the current to pass The 3 basic components of a hearing aid are - ANSWER-microphone, amplifier and receiver Resistors - ANSWER-restrict electron movement Capacitors - ANSWER-will pass AC but not DC Transistors - ANSWER-are amplifiers in hearing aids Integrated circuit combine - ANSWER-transistors, capacitors, resistors A microphone is a - ANSWER-transducer A transducer converts - ANSWER-energy from one form to another The range of natural resonance of the adult external ear average is - ANSWER-2KHZ to 3KHZ The best instrument with which to perform an examination of the external auditory meatus is - ANSWER-an otoscope The color range of a normal TM is : - ANSWER-pearly white to pinkish gray The outer rim of the auricle is the - ANSWER-helix Wax normally moves out of the ear canal - ANSWER-due to movement of tiny hairs The ceruminous glands are located in the - ANSWER-outer ear canal The average adult external auditory canal is - ANSWER-approx. 1/4 inch in diameter The tympanic membrane responds to sounds output by vibrating - ANSWER-at the same speed as input The external auditory meatus : - ANSWER-is primarily within the cartilaginous section of the other ear Most of the back and forth motion of the TM is caused by - ANSWER-Acoustic energy Atresia - ANSWER-closure of outer ear Prolapsed Canal - ANSWER-is caused by the aging process Full Occlusion of the ear canal due to impacted cerumen will affect - ANSWER-LOW frequencies the most Polps are - ANSWER-pieces of cartilage that grow in the ear canal Impacted cerumen - ANSWER-should be removed by physician Inflammation of the canal is caused by - ANSWER-excema, otitis external dermatitis A 20yr old client has infection in the external auditory meatus. What type of hearing loss is the most likely to be present ? - ANSWER-Conductive Loss Which of the 8 "Red Flags" are detected with the otoscope - ANSWER-significant cerumen, accumulation A condition with white chalky deposits on the ear drum is call - ANSWER-tympanosclerosis Persons most susceptible to a cholestatoma are those with - ANSWER-perforated ear drum A Stapedectomy is a common surgical treatment for - ANSWER-Otosclerosis A conductive hearing loss is a : - ANSWER-problem in the pathway of the outer or middle ear or both A plugged Eustachian tube is a symptom of - ANSWER-glue ear, aero otitis media A disarticulated ossicular chain - ANSWER-can be caused by a blow to the head Otosclerosis is - ANSWER-fixation of the stapes The presence of fluid in the middle ear is called - ANSWER-otitis media A congenitally absent malleus can cause a - ANSWER-conductive loss The major characteristic of suppurative otitis media is - ANSWER-bacteria in the middle ear A stapedectomy is a surgical procedure in which - ANSWER-part of the ossicular chain is removed and replaced by a prosthesis Impedance testing or tympanometry - ANSWER-supplements bone conduction testing An advantage of impedance testing is - ANSWER-its diagnotic value A Tympanogram requires : - ANSWER-a tight probe seal