Free IHS Hearing Loss Assessment Question and Answers — Questions and Answers
Question 1: A tympanic membrane perforation may cause a:
- Conductive loss. (Correct answer)
- Degradation effect.
- Place theory.
- All of above.
Correct answer: Conductive loss.
A tympanic membrane perforation may cause a conductive hearing loss. When the tympanic membrane (eardrum) is perforated or damaged, it affects the transmission of sound waves to the middle ear. This disruption leads to reduced efficiency in conducting sound vibrations to the inner ear, resulting in a conductive hearing loss.
Question 2: User satisfaction must include:
- parallel venting
- Calcium deposits.
- patient preference. (Correct answer)
- Loudest frequency
Correct answer: patient preference.
User satisfaction in the context of a topic like "parallel venting," "calcium deposits," and "loudest frequency" typically involves considerations that prioritize patient preferences. In various fields such as healthcare, technology, and design, user satisfaction is key to ensuring that products or services meet the needs and preferences of the individuals using them. Patient preference specifically refers to the importance of understanding and accommodating the desires, comfort levels, and specific needs of patients when designing or providing healthcare services or products. This focus on patient preferences contributes to overall user satisfaction and can enhance the effectiveness and adoption of the solution or service being offered. Therefore, "patient preference" is the most relevant and appropriate consideration for user satisfaction in healthcare contexts.
Question 3: What is a characteristic of a sensorineural loss?
- Greater for the low frequencies than for the higher frequencies.
- -Loud talker<br> -Difficulty understanding high frequency consonants sounds<br> -Recruitment<br> -Tinnitus often preceeds it. (Correct answer)
- high frequency average saturation sound pressure level with a 90 dB SPL input.
- -A hearing level dial<br> -An attenuator dial
Correct answer: -Loud talker<br> -Difficulty understanding high frequency consonants sounds<br> -Recruitment<br> -Tinnitus often preceeds it.
A characteristic of sensorineural hearing loss is that it typically affects higher frequencies more than lower frequencies. This means there is greater loss for high-frequency sounds, such as consonant sounds like "s," "f," and "th," compared to low-frequency sounds. This can result in difficulty understanding speech, especially in noisy environments, and may lead to the perception that others are speaking softly or mumbling (hence the "loud talker" impression).
Question 4: A hearing aid that works with the battery door slightly open, but shuts off when you close the door:
- The second and third formants.
- wires touching the battery. (Correct answer)
- Differs at each frequency.
- SAT- Speech awareness threshold
Correct answer: wires touching the battery.
The correct answer to the options provided would be "wires touching the battery." This scenario suggests that there could be an issue with the wiring or connection inside the hearing aid, possibly due to wires that are not properly connected or are touching the battery when the door is closed.
Question 5: Insertion Loss occurs when;
- Bone conduction testing causing thresholds to shift due to headphones being placed over the ear.
- presenting a tone that is only inaudible without the instruments on.
- The level in the ear canal with a hearing aid inserted is less than the input level. (Correct answer)
- the instrument feeds back only when the coupler is removed.
Correct answer: The level in the ear canal with a hearing aid inserted is less than the input level.
Insertion Loss occurs when the level in the ear canal with a hearing aid inserted is less than the input level. This term refers to the reduction in sound level that occurs when a hearing aid is placed in the ear canal. It's a measure of how much sound the hearing aid attenuates or reduces before reaching the eardrum. The goal is to minimize insertion loss to ensure that the wearer receives the appropriate amplification for their hearing needs.
Question 6: The sampling rate:
- electronic microphone
- -refers to how often the waveform amplitude is measured.<br> -has a direct bearing on the frequency bandwidth of the hearing instrument.<br> -must be at least twice as fast as the highest desired frequency. (Correct answer)
- Is easier to hear when a sound stops than when it begins.
- -It is impossible to mask<br> -The patient displays a bilateral conductive loss<br> -Masking cannot be completed due to overmasking.
Correct answer: -refers to how often the waveform amplitude is measured.<br> -has a direct bearing on the frequency bandwidth of the hearing instrument.<br> -must be at least twice as fast as the highest desired frequency.
The sampling rate refers to how often the waveform amplitude is measured in digital audio processing. It has a direct bearing on the frequency bandwidth of the hearing instrument because it determines the highest frequency that can be accurately captured and reproduced. According to the Nyquist-Shannon sampling theorem, the sampling rate must be at least twice as fast as the highest desired frequency to avoid aliasing and accurately represent the waveform.
Question 7: Masking is performed during air conduction testing when:
- -a 40 dB or more difference occurs between the air conduction threshold of th better ear and the poorer ear.<br> -a 40 dB or more difference occurs between the air conduction threshold of the poorer ear and the bone conduction threshold of the better ear. (Correct answer)
- After air conduction testing.
- -have little or no effect on frequencies above 400 Hz.<br> -generally reduce levels at frequencies below 200 Hz.<br> -reduce atmospheric pressure build up.
- are 20 dB less because of ANSI standards.
Correct answer: -a 40 dB or more difference occurs between the air conduction threshold of th better ear and the poorer ear.<br> -a 40 dB or more difference occurs between the air conduction threshold of the poorer ear and the bone conduction threshold of the better ear.
Masking is performed during air conduction testing when a 40 dB or more difference occurs between the air conduction threshold of the better ear and the poorer ear. This is necessary to prevent the better ear from hearing the test signal and influencing the results.
Question 8: High frequency Average SSPL 90 (HFA SSPL 90) refers to:
- saturation sound pressure level at 90 db spl.
- average sound pressure level at 90 hz.
- high frequency average saturation sound pressure level with a 180 db Spl input.
- high frequency average saturation sound pressure level with a 90 dB SPL input. (Correct answer)
Correct answer: high frequency average saturation sound pressure level with a 90 dB SPL input.
High Frequency Average SSPL 90 (HFA SSPL 90) refers to the high frequency average saturation sound pressure level with a 90 dB SPL input. This measurement indicates the average output level of a hearing aid for high-frequency sounds when the input level is set at 90 dB SPL. It is an important specification used to evaluate the performance and effectiveness of hearing aids, particularly in amplifying high-frequency sounds for individuals with hearing loss in those ranges.
Question 9: Which surgical technique repairs the tympanic membrane?
- Myringoplasty (Correct answer)
- Stapedectomy
- Myringotomy
- Cholesteaplasty
Correct answer: Myringoplasty
The surgical technique that repairs the tympanic membrane (eardrum) is called myringoplasty. This procedure involves repairing a perforation or hole in the tympanic membrane to restore its integrity and function. Myringotomy, on the other hand, is a surgical procedure that involves making a small incision in the eardrum to relieve pressure and drain fluid from the middle ear. Stapedectomy is a surgical procedure to treat otosclerosis by removing part or all of the stapes bone and replacing it with a prosthesis. Cholesteatoma refers to a type of benign cyst or growth in the middle ear that may require surgical removal, which can involve cholesteatoplasty.
Question 10: Audiometric zero is:
- increase in bone conduction sound for frequencies below 2000 Hz.
- -Occurs in the middle ear<br> -May perforate the eardrum<br> -Is usually accompanied by a constant odorous discharge.
- 0 dB Hearing Level<br> 0 db HL<br> The level where normal ears can hear at every frequency. (Correct answer)
- presenting a tone that is only inaudible without the instruments on.
Correct answer: 0 dB Hearing Level<br> 0 db HL<br> The level where normal ears can hear at every frequency.
Audiometric zero, often denoted as 0 dB HL (decibels Hearing Level), is the reference point used in audiometry to represent the lowest sound intensity that a normal human ear can perceive at each specific frequency. It serves as the baseline or starting point for measuring hearing thresholds across different frequencies. When testing hearing, sounds presented at 0 dB HL are generally perceived as just barely audible to individuals with normal hearing.
Question 11: Which noise is best for masking during pure tone air and bone conduction testing?
- Air conduction
- Pulsating pure tone
- Narrow band noise (Correct answer)
- White noise
Correct answer: Narrow band noise
During pure tone air and bone conduction testing, narrow band noise is often considered the most effective for masking. Narrow band noise is a type of noise that has a relatively narrow bandwidth, centered around a specific frequency. This noise type is used in masking to effectively cover up or mask the test ear during audiometric testing, particularly when testing air and bone conduction thresholds. It is selected to match the frequency being tested, ensuring that the sounds presented to the non-test ear do not interfere with the thresholds being measured in the test ear.
Free IHS Hearing Loss Assessment Question and Answers
A tympanic membrane perforation may cause a: