Download - Unit 6: Voice Evaluation
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Voice Evaluation
CDIS 700
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Objectives of Voice Evals
Primary objective- Discover whether the client has a voice disorder, and to evaluate the present symptoms.
Secondary objective- Patient education and motivation, as well as establishing your own credibility.
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Referral Source Who referred the patient
ENT Neurologist Physician SLP Family, friends, or self
Will want to know if the patient understands why they have come or if they realize there is a problem.
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Establish the reason for the referral
Establish the exact reason for the patient referral.
Establish if the patient understands the reason for the referral. “What brings you to see me?”
Develop patient knowledge of the problem.
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History of the Problem When was the onset of the problem? What has the course of the problem
been? How does it change over time? How does the patient define the problem? How do others define the problem? What is their motivation for change? Identifying vocal abuses and misuse.
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Medical History What illnesses may be related to the
present voice problems?
Any known etiological factors?
Any medications that may be
involved?
http://www.uiowa.edu/~shcvoice/rx.ht
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Social History Gather knowledge about patient’s work, home
and social environment. Discover emotional, social and family difficulties. Establish an understanding of the patient’s
personality. Questions:
What is the home and work environment? Any social or emotional difficulties related to the
voice? Does the patient perceive any relation between
the problems?
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Oral Mechanism Exam Determine the physical condition of the
oral mechanism. Observe the laryngeal area for tension. Check for any physiological difference
or signs of neurological involvement in the oral cavity.
Check for laryngeal sensations.
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Voice Evaluation
Describe the present vocal properties. Examine inappropriate use of the voice. Assess respiratory status Note voice quality
Self-report Clinician observation Non-instrumental measures Instrumental measures
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Quality Assessment A multitude of scaling proceduresReading, conversational speech, singing Maximum phonation time/duration (MPT/MPD)s/z ratio
Sorry my MPT and s/z ratios are so quiet on the audio narration – my video editing software dampened the sound.
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Quality Assessment Quality during sustained vowels and
speaking: Hoarse or raspy– warnings for language in
this video; consider how you might educate this person
Breathy – voice is also a bit hoarse Tremulous Strained or tense Diplophonia – I found a clip! Aphonia – lack of voice/whisper
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Instrumental Assessment Laryngoscopy
Flexible (nasal) – also see here for longer video
Rigid (oral) - a bit strange, but you can see pics of the scope
Note: stroboscopy is just the light source that can be attached to flexible or
rigid scopes. It slows down the motion of the vocal folds so our eyes can
see; otherwise they move too fast.
Mirror laryngoscopy – wear gloves!
Electroglottograph Visi-Pitch Nasometer Others
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Direct Laryngeal Observation: Vocal Tract Visualization and Imaging:
Position Statement http://www.asha.org/docs/html/PS2004-00121.html
Knowledge and Skills for Speech-Language Pathologists With Respect to Vocal Tract Visualization and Imaging http://www.asha.org/docs/html/KS2004-00071.html
Vocal Tract Visualization and Imaging: Technical Report http://www.asha.org/docs/html/TR2004-00156.html#r5
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Keep in Mind… Rely on what you hear, not solely on
instrumentation data. During an evaluation, you are making a
diagnosis of how the voice is performing, not a medical diagnosis.
Delay making recommendations for treatment unless an ENT has performed a medical evaluation and voice therapy is not contraindicated.
You can always educate patients on good vocal hygiene, even if you may not be able to make specific voice therapy recommendations.