Definitions
What is the term for hearing loss in one ear?
Unilateral
What is the most common reason for using hearing aids?
To improve speech understanding, especially in noisy environments.
What tool can you use to measure: ear canal appearance & tympanic membrane condition?
Otoscope
What is the purpose of using ear plugs?
To reduce noise exposure and protect hearing.
When testing with headphones- are you using MAP or MAF
MAP
Describe frequency.
Number of complete cycles per second.
Why is asymmetric hearing loss a concern for children in school settings?
It can cause difficulty with sound localization and hearing the teacher in noisy classrooms.
If tympanogram results show negative pressure, what could this indicate?
Eustachian tube dysfunction.
Why was there variability in conductive hearing loss during the ear plug lab?
Because of differences in ear plug insertion and fit.
Explain sound in terms of the source, medium, and receiver. Use this example: Will is blowing his flute and his sister, Lexi, is listening to it.
Source: Will's mouth blowing into the flute
Receiver: Lexi's ears
Medium: The air traveling
What two anatomical position terms describe “toward the side” and “toward the midline”?
Lateral & Medial
Why is communication counseling important when fitting hearing aids?
Because hearing aids help with sound access, but users also need strategies to improve communication.
T/F: Can REM be personalized to fit an individuals ear?
True
How many dB can an ear plug replicate?
Roughly 30dB.
What sound produces a sinusoidal movement, otherwise known as simple harmonic motion?
Pure tone.
What is the difference between AS, AD, and AU
AS=Left AD=Right AU=Both
What does phons measure?
Perceived loudness, not actual sound pressure.
What do brackets [ ] indicate on an audiogram?
Masking for Bone Conduction.
As you age, what frequencies become harder to hear?
Higher Frequency
What are two names for the external fleshy part of the ear?
Pinna and Auricle.
What happens to air molecules during condensation and rarefaction in a sound wave?
Condensation compresses molecules; rarefaction spreads them apart.
Explain the difference between conductive and sensorineural hearing loss.
Conductive is due to outer ear blockage(ear wax) & sensorineural is due to inner ear obstruction (hair cell damage).
Does sound travel faster through bone or air?
Bone.
What type of hearing loss do ear plugs prevent?
Conductive hearing loss.
T/F: We encounter pure tones every single day.
False.