CSD 230 Flashcards
PATIENT WELL-BEING
HEALTH INSURANCE PORTABILITY AND ACCOUNTABILITY ACT (HIPAA…NOT HIPPA)
INFECTION CONTROL
CALIBRATION
BIOLOGICAL CHECKS
Case history
ASK QUESTIONS TO DETERMINE:
* THE REASON FOR TESTING
* THE TYPES OF TESTS YOU WILL COMPLETE
* OTHER MEDICAL CONCERNS THAT MAY REQUIRE A REFERRAL
* WITH WHOM TO SHARE THE RESULTS
* OTHERS?
categories of testing
AIR CONDUCTION THRESHOLDS
* BONE CONDUCTION THRESHOLDS
* SPEECH TESTING
* IMMITTANCE MEASUREMENTS
* OTOACOUSTIC EMISSIONS
* OTHER
Threshold
- JUST NOTICEABLE DIFFERENCE (JND)
- PURE TONE THRESHOLD: SOFTEST INTENSITY AT WHICH A PERSON BARELY HEARS A TONE
- CLINICAL THRESHOLD: SOFTEST INTENSITY AT WHICH THE PATIENT RESPONDS 50% OF THE TIME
audiogram
Right:
- ac unmasked: circle
- ac masked: triangle
-bc mastoid unmasked: half triangle (pointy side on left)
-bc mastoid masked: half square (open side on right)
Left:
-ac unmasked: x
-ac masked: square
-bc mastoid unmasked: half triangle (pointy side on right)
bc mastoid masked: half square (open side on left)
Comparing AC and BC
A DIFFERENCE OF >10DB IS CALLED AN AIR-BONE GAP
*INDICATES A CONDUCTIVE COMPONENT
THREE FREQUENCY OR PURE TONE AVERAGE (PTA)
AVERAGE OF 500, 1000, AND 2000HZ
* IF LOSS IS PRECIPITOUS, USE A 2 FREQUENCY AVERAGE
* COMPARE WITH SPEECH RECEPTION THRESHOLDS TO DETERMINE RELIABILITY
reliability check
SPEECH RECEPTION THRESHOLD = PURE TONE AVERAGE
* SPEECH AWARENESS THRESHOLD = BEST TH
* COMPARE WITH OBJECTIVE DATA
* COMPARE WITH HOW YOUR CASE HISTORY WENT
why modify
40% OF CHILDREN WITH HEARING LOSS HAVE AN ADDITIONAL DISABILITY
* INDIVIDUAL PREFERENCES
* TIME CONSTRAINTS
* AGE CONSTRAINTS
non-organic hearing loss
faLSE OR EXAGGERATED HEARING LOSS
* MALINGERING, PSEUDOHYPACUSIS
* FUNCTIONAL HEARING LOSS
type of modifications
ENVIRONMENTAL
* PERSONNEL
* TIMING/DURATION
* INSTRUCTIONS
* RESPONSE MODES
* EQUIPMENT
* EX. HEADPHONE TYPES
sensorineural
Inner ear
- aging
-noise damage
- drug side effects
- auditory tumors
-blast/explosion
Conductive
outer/middle ear
- fluid
-foreign objects
-allergies
-ruptured eardrum
-impacted earwax
Description of hearing loss
EACH EAR SHOULD BE DESCRIBED SEPARATELY, UNLESS THEY ARE THE SAME
* INCLUDE:
*
SEVERITY
*
TYPE
*
FREQUENCY
*
EAR
* ADJECTIVES:
* SLOPING, PRECIPITOUSLY SLOPING, COOKIE-BITE CONFIGURATION
* THERE IS NO “NORMAL HEARING LOSS”
* ACCEPTABLE: HEARING IS WITHIN NORMAL LIMITS FROM 250 – 1000HZ WITH A MILD SLOPING TO MODERATE SENSORINEURAL
HEARING LOSS FROM 2-8KHZ, BILATERALLY
WAYS TO CLASSIFY HEARING LOSS BY ETIOLOGY
*GENETIC OR ACQUIRED
*SITE OF LESION
*TIME OF ONSET
