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The Objectives of Hearing Assessment :
- To identify the patient’s status of hearing.
- side of loss
- typeof loss
- degree of hearing loss accurately
- loudness tolerance (upon request)
- To provide the most appropriate management for the patient
- To the client, the family members and teacher
- To counsel the patient on the usage of hearing devices (if found to be beneficial)
- Hearing Aids
- Bone Conductor Hearing Aids
- Cochlear Implant
- Assistive Listening Device
What are the methods of hearing assessment
Hearing Assessment method depends on the age of the client. At different age the method of assessment defers.
Here is a quick guideline:
Birth –> adult: AABR and AOAE (Screening)
Birth- adult: Diagnostic Otoacoustic Acoustic Emmissions (OAE) and Diagnostic Auditory Brainstem Response (ABR)
4 months old (from able to move head) –> 2.5 years old: Visual Reinforcement Puretone Audiometry (VRA)
2.5 years old (when child is able to take instruction) –> 6 years old: Play Audiometry
6 years old -adult: Pure Tone Audiometry
Hearing Screening Screening
Hearing Screening as stated above is divided into objective hearing assessment and subjective hearing assessment. To decide whether to screen hearing objectively or subjectively depends on patients understanding of instructions, age and sound level in the environment.
Same as screening hearing assessment, diagnostic hearing assessment also depends on the clients understanding of instruction, age and sound level of the environment. In most cases, diagnostic is performed when results of the screening fails and needed a clearer understanding of the hearing test results.
Aided Hearing Assessment
Aided Hearing Assessment is to assess the softest sounds you or your child can hear with their Hearing Aids or Cochlear Implant using a sound field speaker instead of headphones.
Newborn Hearing Screening
Newborn Hearing Screening is an assessment for all children born. 50% of children born with hearing impairment are from parents with no hearing impairment. Since hearing is the door to speech, it is imperative for all babies to have a newborn hearing assessment done.
Auditory brainstorm response
The auditory brainstem response (ABR) assessment is performed within 60-minutes assessment to obtain more information about the hearing nerve. While you or your child sleep or relax, a computer measures how your hearing nerve responds to sounds.
Otoacoustic Emissions (OAE)
Otoacoustic Emissions assessment is to check the outer hair cell function. It provides the information within pinpointing the part of the ear that may be damaged.