Week 13 Flashcards
What does a SpiroPet measure?
vital capacity in cubic centimeters (cc) of air
Compared to normative data based on age and sex
What are norms for maximum phonation time?
Children - about 10 sec
Adults - about 20 seconds
Females - about 25.7 seconds
Males - about 34.6 seconds
What does a short MPT suggest?
Respiratory problem Lack of checking action Glottal insuffiency VPI Errors in data collection
What does an excessively long MPT suggest?
Singer
Pressed phonation
Hyperadduction of VF
Error in data collection
What is the phonation quotient?
Vital capacity divided by MPT
What are the phonation qoutient norms?
269 cc/sec in adult men
233 cc/sec in adult women
What does a high PQ suggest?
Lack of checking action
Glottal insuffiency
VPI
Error in data collection
What does a low PQ suggest?
Singer
Pressed phonation
Hyperadduction of VF
Error in data collection
Why is /z/ longer than /s/?
/s/ has one place of constriction
/z/ has the same, but VF are vibrating so glottis is opening and closing
Norms for s and z separately
Children - s 9 seconds, z is 11 sec
Adults - s 16 sec, z is 19 sec
Short s and z suggest?
Respiratory problems
Lack of checking action
Errors in data collection
Excessively long s and z suggests?
Singer
Athlete
Error in data
Norms for s/z ratio?
Normal - less than 1 (.7 to .99)
Greater than 1 s/z ratio
s is normal
z is leaky
Glottal insufficiency
VPI
Error in data
Less that .7 s/z ration
Increased medial compression Excessive stiffness of VF Constriction in vocal tract Inappropriately loud voice Pressed phonation Errors in data collection
What are norms for quiet breathing per minute
Adult - 12 to 16
Children 6-12 years - 12-20
Can you rely on algorithms?
no. they are unreliable when F0 variability exceeds 6% per cycle
The mean pitch range for males and females on a sustained vowel is ______ octaves
two to three
Mean male F0
130 Hz
Mean female F0
220 Hz
Frequency perterbation
jitter
Amplitude perturbation
shimmer
Harmonic to noise ratio
Collect with sustained vowels
Higher=greater periodic sound (preference)
Lower=greater aperiodic, ROUGHNESS
What are the discharge categories?
Clinically normal outcome
Max gain
ADLs
Self discharge
Clinically normal outcome
Habitually uses appropriate manner of production to all types of voice
Appropriate voice stamina to meet needs
Dynamic loudness, pitch, and timing flexibility
Maximum gain
Patient’s needs met
Pt and clinician agree rehab is maximized
Voice will never be normal
No more hypothesis to test
Pt does not practice and refuses to change Bx like drugs
ADL discharge
Pt and clinician agree pt voice will allow communication for daily needs
self discharge
Pt does not attend or come back
Moves away
Cannot afford
