What two actions MUST a hearing healthcare professional perform before testing an existing patients hearing - ANSWER-Clean hands in view of patient and
... [Show More] clean or replace speculum from otoscope
How does osteoma present - ANSWER-Bony growth in external auditory canal
What should a hearing healthcare professional do prior to administering a speech reception threshold test - ANSWER-Familiarize patient with the word list
A 36- year old female restaurant worker with history of hearing loss reports she is unable to hear as well as she did 2 years ago testing reveals moderate conductive loss what is a likely cause of the patients change in hearing - ANSWER-Otosclerosis
What portion of the ear contains sebaceous glands - ANSWER-Outer portion of external auditory canal
Which factor will affect patients acceptance in hearing instruments? - ANSWER-Cosmetic preferences
Why should otoblock be placed beyond second bend of ear canal - ANSWER-Results in complete impression of the canal
What validation method can be effectively performed in a sound field environment - ANSWER-NU-6
A hearing health care professional is counseling a patient about expectations of amplification what information should the hearing healthcare professional include in this therapy - ANSWER-Outside factors that can hinder hearing
A patient has been using an ITC hearing instrument for approx 16 mos the patient has a new job that requires use of telephone with a headset - ANSWER-Add an amplifier to existing phone
A patient complains that the hearing instrument works intermittently After initial inspection the hearing healthcare professional squeezes and taps on the case What is the suspected problem - ANSWER-An amplifier problem
Germicidal wipes are an example of - ANSWER-Disinfectant
4 modes of transmission - ANSWER-Contact, Indirect contact, Droplet, Vehicle, Airborne, vectorborne
Contact - ANSWER-Directly infected by the host
Indirect contact - ANSWER-Touching something contaminated by an infected person. Surfaces or objects
Droplet - ANSWER-transmission via airborne droplets
Vehicle - ANSWER-Transmitted by contaminated substances such as water, food, blood or bodily substance
Airborne - ANSWER-Droplet or neucli or dust transmission
Vectorborne - ANSWER-Animals or insects carries pathogen
Characteristics of tympanic membrane - ANSWER-Pinkish- gray in color oval shaped
Audiometric zero - ANSWER-The average softest intensity that someone with normal hearing can detect
Tympanometry - ANSWER-Measures middle ear function and compliance is also known as imittence audiometry
Acoustic Reflex - ANSWER-Middle ear muscle reflex, tympanometer is used to measure activity of stapedius muscle
TPP - ANSWER-Tympanometric peak pressure- 0.6-144cc
ECV - ANSWER-Ear canal volume +200 to 400 mH2o or dapa
The most common cause of sudden loss of of hearing at 4000Hz is - ANSWER-Acoustic trauma
What condition would not be a concern in establishing pure tone air conduction threshold - ANSWER-Otosclerosis
A large dip at 6000Hz in ONE ear only with a positive tone decay is an indicative of - ANSWER-A possible retrocochlear tumor
A patient who has worn hearing aids for a long time reports his ears are stopped up he recently had a cold, What will give the MOST information about this patients complaint - ANSWER-Impedance audiometery
What programmable adjustment would be BEST to control loud sharp sounds - ANSWER-Increase the compression ratio
During otoscopic inspection what is NOT a consideration for earmold selection - ANSWER-Compliance of tympanum
A patient comes in complaining that his ITC aids were working fine until he had them cleaned now they are week and feeding back What is most likely the cause of the problem - ANSWER-Receiver tubing pushed in
A patient who has had a radical mastoidectomy has been referred to your office for a new earmold Physician is urging caution due to short canal What would be true about this patient - ANSWER-Multiple otoblocks may be needed, Careful placement of otoblock is needed
DSP is - ANSWER-digital signal processing
What is the test to determine the effectiveness of directional microphones - ANSWER-QuickSIN
Cochlea can only clarify and purify up to - ANSWER-90dB
Vagus nerve - ANSWER-is the 10th cranial nerve it lies at the bottom of the ear canal and when irritated can cause Arnolds Reflux
Cochlear Dead spot signs - ANSWER-High frequencies are greater than 65dB HL and pure tones sound like crackles
Stria Vascularis - ANSWER-Produces endolymph fluid
Organ of corti is located - ANSWER-On the basilar membrane
Inner hair cell characteristics - ANSWER-Are afferent approx 3,000 in each ear and damage results in severe hearing loss with poor word recognition scores
Outer Hair cell characteristics - ANSWER-Are efferent approx 12-15,000 in each ear and damage will results in up to a 50dB hearing loss they are also embeded in the tectorial membrane
A space occupying lesion (tumor) arising from auditory nerve is called - ANSWER-Acoustic neuroma and vestibular schwannaoma
Sensorineural Hearing loss - ANSWER-Damage to sensory structures, PURELY inner ear, Noise induced loss, presbycusis and most congenital hearing loss falls into this category. Air conduction thresholds and Bone conduction thresholds are close if not equal [Show Less]