Study guides, Class notes & Summaries

What is the relationship between fundamental frequencies and harmonics? : F0= lowest freq component of a complex periodic sound; harmonic is a regular and repeating multiple of the f0 In which frequencies and at what intensities are most speech sounds produced? : When applied to speech, the human voice spans a range from about 125Hz to 8kHz. 55-65 dB Define threshold : "Threshold is defined as the lowest decibel hearing level at which responses occur in at least one half of a series ...

A patient comes to a clinic complaining of short, intense dizzy spells. An audiologist suspects that the patient may have benign paroxysmal positional vertigo (BPPV). Which of the following tests is most appropriate to use to confirm the diagnosis? : Dix-Hallpike test 0 dB0 decibels HL is best described by which of the following? : 0 dB0 decibels HL on an audiometer represents the minimum audible pressure needed at each frequency for an individual with normal hearing to detect a pure to...

For which of the following instruments do national standards or uniform performance standards for calibration exist? a. Pure tone audiometers b. OAEs c. ABR d. all have calibration standards : Pure tone audiometers Only pure tone audiometers have established (ANSI) standards for calibration Which is most likely to be introduced deliberately by an examiner during an audiometric exam? a. distorted tone b. switching transients c. masking noise d. none of the above : Masking noise ...

What is the FDA approved age for BAHA? : 5 years old In effort to reduce the adverse environmental noise, what adjustment can be made to hearing aids? : Enable expansion which reduces the low level ambient noise At what age is myelinazation of Wave V nerve complete? : Up to 18 months of age What frequency range is most affected in patient's with Meniere's disease? : Low frequencies- 250-2000Hz A doubling of distance results in how much increase in dB? : 6dB At what age can you get ...

The caloric test is designed to stimulate which of the following structures? · Utricle · Saccule · SSC · Posterior SSC · Lateral SSC : lateral SSC An audiologist fits a young woman with binaural BTE hearing aids three weeks ago. The patient reports that the devices have provided suitable amplification in most environments, but she complains that low level ambient noise has been distracting. In an effort to reduce the adverse noise effect, what adjustment might the audiologist ...

What is the most likely diagnosis based on the results? (A) Otosclerosis (B) Otitis media (C) Bilateral atresia (D) Impacted cerumen (E) Perforated tympanic membrane : Otitis Media Which of the following scores are mostly likely to be obtained if word recognition is assessed using an age-appropriate test at 40 dB SL?A) (A) 70% right ear, 66% left ear (B) 60% right ear, 80% left ear (C) 80% right ear, 72% left ear (D) 88% right ear, 90% left ear (E) 100% right ear, 70% left ear : ...

Normal hearing (adults) : 0-25 dB Normal hearing (child) : 0-15 dB Slight hearing loss (child) : 16-25 dB Mild hearing loss : 26-40 dB Moderate hearing loss : 41-55 dB Moderately severe hearing loss : 56-70 dB 2 | P a g e Severe hearing loss : 71-90 dB Profound hearing loss : 91+ dB Conductive HL problem : Outer or middle ear problem Conductive HL on audiogram : Bone conduction is within normal limits and air is abnormal. Air bone gap is > 10 dB Conductive HL causes : ...

What do behavioral tests measure? : A patient's subjective perception of sound What do physiological tests measure? : The objective measure of the body's response to sound What are examples of behavioral tests? : Pure tone testing Speech audiometry Why are physiological tests needed? : With behavioral tests, someone might not raise their hand if they're not confident that they heard it. People could also guess and raise their hand. Behavioral tests mean that someone's threshold m...

The purpose of audiological assessment is to get quantitative and qualitative information on hearing loss in terms of the amount, the type, and the configuration. The amount of hearing loss is a quantitative measurement expressed in dB. It is tested using pure tones at frequencies between 500-4000Hz. the severity of hearing loss can be classified as Mild 20-40dB, moderate 41-60 dB, severe from 61-80 dB, and profound 81dB+ (levels vary). the type of loss is related to the location of da...

Audiologists are responsible for caring for persons with _________________ : hearing loss, or impaired hearing __________________ is considered to be the Father of Audiology. : Carhart Over the age of 75 yrs, the proportion of adults with hearing loss is approximately ______________. : 1/2 Up to __________ in 1000 children is born with some degree of hearing impairment. : Six The medical specialty that treats diseases of the ear is called ________. : otolarynngology, otology, or ENT ...