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Audiology 8
Final Exam
| Question | Answer |
|---|---|
| What do pure tone audiograms depict? | the degree of hearing loss by frequency |
| What can pure tone audiograms NOT depict? | degree of disability |
| What types of sounds do we hear every day? | complex sounds |
| What does speech audiometry provide? | information about the degree of communication/hearing handicap |
| What does speech audiometry tell us? | the patient's degree of hearing loss for speech, levels required for the most comfortable and uncomfortable loudness levels, range of comfortable loudness, and the ability to recognize and discriminate sounds of speech |
| WHy would an SLP use speech audiometry? | for therapy planning and goal setting |
| How does a speech audiometry differ from pure tones? | the stimulus is speech, requires an audiometer with speech capabilities, patient response is to repeat the word |
| What is a VU meter? | allows someone to measure the peak intensity of a signal, target word should peak at zero |
| What should you do when using a monitored live voice for speech audiometry? | attention must be paid to the VU meter to make sure that the signal is accurate |
| What is speech audiometry? | an umbrella term for a number of assessments with speech as the stimulus |
| What are the basic levels of speech processing from easy to hard? | awareness, discrimination, identification/recognition, comprehension |
| What is awareness of speech processing? | Knowing that something was said |
| What is discrimination of speech processing? | telling the difference between two things said |
| What is identification/recognition of speech processing? | knowing what word was said |
| What is comprehension of speech processing? | knowing what the word said really is/means |
| What is Speech Detection threshold? | the lowest dB HL at which a patient can barely detect presence of speech and identify it as such (awareness) |
| What type of test is speech detection threshold? | a non-standard test |
| When is speech detection threshold commonly used? | with young children, cognitively impaired adults, or people with severe/profound hearing loss who have extreme difficulty hearing/understanding speech or creating speech |
| What is a speech recognition threshold test? | lowest dB HL at which speed can barely be understood at which a list of spondaic words can be correctly identified |
| WHat is a spondaic/spondee word? | two syllable words with equal stress on both syllables (baseball, cowboy, ice cream, rainbow) |
| How does dB change when the patient gives a wrong answer? | up 5 |
| How does dB change when the patient gives a correct answer? | down 10 |
| How can speech recognition threshold be assessed? | unilaterally, bilaterally, or in the sound field |
| WHat is the main purpose of a speech recognition threshold? | to validate pure tone thresholds, not a diagnostic evaluation on its own |
| Why do we use speech recognition threshold - pure tone threshold agreements? | it can help determine if the patient is responding accurately |
| What is considered a good SRT-PTA agreement? | +10 dB |
| How can the shape of a hearing loss influence SRT-PTA agreement? | spondees are low frequency weighted, PTA includes 2000 Hx where hearing loss is more common, and SRT may agree better with a 2 frequency PTA |
| What do supra threshold speech recognition tests do? | help determine how patients hear everyday speech by determining if the louder speech helps understand the stimulus |
| How can measuring the ability to understand speech overall help a patient? | determines extend of speech recognition difficulty, aids in diagnosis, determines prognosis, suggests frequency/intensity/temporal resolutions, suggests site or lesion, useful in hearing aid fitting |
| What tests are used for suprathreshold testing? | word recognition testing (most common), sentence tests, speech in noise tests, nonsense syllables, digits |
| What is an open set? | choosing from an infinite number of answers |
| What is a closed set? | choose from a group of stimuli (easier) |
| What is the most comfortable loudness level (MCL)? | intensity where the patient says it is most comfortable to hear and understand speech |
| How is MCL and UCL calculated? | continuous discourse, monaurally and biaurally |
| What is the MCL for normal hearing? | 40-55 dB (meaning 40-55 dB louder than patients speech recognition threshold level) |
| What is the uncomfortable loudness level (UCL)? | intensity where running speech is intolerable due to its intensity or the physical pressure of the sound |
| What level is conversational speech? | around 60 dB |
| What is the UCL for normal hearing? | 100-110 dB HL |
| Why are MCL and UCL so important? | if you do not have the intensity loud enough, the patient won't hearing you and this will degrade their results. If you are too loud, the patient may not respond accurately due to discomfort |
| What is Dynamic range (DR?) | decibel difference between the threshold of sensitivity and the UCL |
| What is a normal hearing DR? | 100 dB or more for either speech or pure tones |
| What happens during word recognition testing (WR)? | a list of monosyllabic words are presented at a predetermined level above the patient's threshold, recorded as a % correct |
| What is the purpose for WR testing? | determine client's maximum speech understanding for one syllable words, gives clinician an idea of how well the client would understand speech if the stimulus was amplified (like with a hearing aid) |
| What are performance intensity functions? | a graph representing word recognition scores as a function of presentation intensity level, shows percent correct as a function of intensity |
| What do performance in noise tests do? | provides indication on real world performance or difference between hearing aid use |
| What is signal to noise ratio (SNR)? | the difference in intensity between the signal/stimulus and the competing noise |
| What happens as a SNR signal is higher? | the listening environment is much easier |
Created by:
hrshook0104
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