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Cards In This Set
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What is the first test in the test battery?
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Case history
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What is the disordered systeams approach?
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The patient has a complaint and the clinician tries to decide where in the system is the disorder? Trying to pinpoint location of problem- generally in a medical setting.
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What is the disordered function approach?
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The clinician asks, "what can i do do help? What communication issues do they have?" Rehabilitation focus. A good audiologist looks at both amplificationa nd therapy
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Why should we use a test battery?
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1) This tests different parts of the system, since disorders may occur simultaneously at different levels.
2) The battery provides a cross-check, which is the same model used in medicine and aviation. The rule is that at least 2 results must correspond. A common problem is that clinicians will stop after finding one disorder. Ex: development of a ME infection in addition to something else. You have to make sure results from all tests make sense. |
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A test battery should do 4 things. What are they?
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1) Evaluate multiple levels of the auditory system.
2) Provide cross-checks 3) Provide relevant information for diagnosis or referrel (we can't diagnose a ME infection or menieres. We are experts in hearing!) 4) Address the patient's complaing |
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What can you find out about your pt before the case history is done?
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1) How well they communicate
2) Referrel source 3) Age 4) level of independence/cognition 5) mobility 6) HAs? 7) facial/cranial/physical abnormalities 8)dizziness? |
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Why should you ask pts to write down and explain medications?
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Might cause HL or suppress dizziness.
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What are some pros of air/ bone conduction testing?
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Tests the whole system, gives picture of entire system, frequency-specific, degree and presence of HL is obtained, ear-specific, helps interpret other tests, basis for performing other tests (SRT), good testing for tracking fluctuating/progressive HL
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What are some cons of air/bone conduction testing?
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Behavioral, might be a distorted signal (not sure how peson is perceiving the signal), controlled background noise, not real life test situation, sensorineural- not specific, can't pinpoint problem place in system, variables that can't be controlled, perceptions not determined, does not test auditory processing or communication ability
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What are some extrinsic variables in pure tone testing?
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Response mode= behaviorial, clinician error/experience, calibration, transducer, ambient noise, pulsed vs continuous stimulus, frequencies, inter-tone interval, instructions, Hughson Westlake vs ascending and descending, how long tone button is depressed, size of booth, temperature of booth/ humidity, lighting, receiving any visual cues from clinicial, earphone placement
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What are some intrinsic variables in pure tone testing?
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Cognitive ability, age, caffeine, experience, temperment/personality/motivation (legal case), tinnitus- pulsed tone, observers, state of observer- time of day, medication, physical ability, language, claustrophia, presence of HL or not
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Hearing thresholds are just an estimate. The test/retest reliability is w/in how many dB?
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10 dB
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Jess Dancer and Ira Ventry, 1976, conducted a stimumulus presentation study. What did they say regarding instructions?
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You should instruct pts before putting the headphones on, unless the person has a HL. if you give strict instructions, you will not get as good of thresholds. There is a 2.5 dB difference in thresholds w/ strict vs lax instructions.
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What did Dancer and Ventry discover about switching the test mode and the affect on threshold?
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The test results showed no affect to threshold when the test
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Dancer and Ventry reported that a false alarm happens when the pt responds even though they don't hear anything. Insructions can affect false alarms. More false alams occur when?
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With higher frequencies and with people with hearing loss
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