CSD 212 Final Exam – comprehensive study guide and exam preparation
material
Conductive Hearing Loss - correct answer ✔✔a loss of hearing related to obstruction or disease
in the OUT or MIDDLE ear in which sound transmission fails to reach the cochlea in the INNER
ear
- bone conduction > air conduction
- air conduction is > 10 dB HL (bone conduction must be norma;)
- occurs when sound cannot reach the inner ear efficiently
- typically people can recognize words without difficulty provided that speech is loud enough to
be heard
Sensorineural Hearing Loss - correct answer ✔✔damage to the cochlea or auditory pathways
that deliver the info from cochlea to the brain
- can be bilateral or unilateral
- caused by disease of the inner ear or 8th cranial nerve
- damage in cochlea//inner ear, nerve leading to brainstem or both
Mixed Hearing Loss - correct answer ✔✔combination of both conductive & sensorineural
hearing loss
Congenital - correct answer ✔✔hearing loss present at birth
Acquired - correct answer ✔✔developmental hearing loss
, Threshold (+it's measurements) - correct answer ✔✔describes how soft a sound a patient can
hear
dB HL NORMAL HEARING - correct answer ✔✔<25 dB HL
dB HL Mild Hearing Loss - correct answer ✔✔26 - 40 dB HL
dB HL Moderate Loss - correct answer ✔✔41 - 55 dB HL
dB HL Moderate // Severe Loss - correct answer ✔✔56 - 70 dB HL
dB HL Severe Hearing Loss - correct answer ✔✔71 - 90
dB HL Profound Hearing Loss - correct answer ✔✔> 90
Bone Conduction - correct answer ✔✔the conduction of sound to the inner ear through the
bones of the skull
- sound waves directly into cochlea via the bones of the skull
Air Conduction - correct answer ✔✔the transmission of sound vibrations to the eardrum
through the external auditory meatus
Audiogram for conductive hearing loss - correct answer ✔✔will show elevated thresholds by air
conduction and normal thresholds by bone conduction
- air // bone gap will be present
Audiogram for sensorineural hearing loss - correct answer ✔✔
material
Conductive Hearing Loss - correct answer ✔✔a loss of hearing related to obstruction or disease
in the OUT or MIDDLE ear in which sound transmission fails to reach the cochlea in the INNER
ear
- bone conduction > air conduction
- air conduction is > 10 dB HL (bone conduction must be norma;)
- occurs when sound cannot reach the inner ear efficiently
- typically people can recognize words without difficulty provided that speech is loud enough to
be heard
Sensorineural Hearing Loss - correct answer ✔✔damage to the cochlea or auditory pathways
that deliver the info from cochlea to the brain
- can be bilateral or unilateral
- caused by disease of the inner ear or 8th cranial nerve
- damage in cochlea//inner ear, nerve leading to brainstem or both
Mixed Hearing Loss - correct answer ✔✔combination of both conductive & sensorineural
hearing loss
Congenital - correct answer ✔✔hearing loss present at birth
Acquired - correct answer ✔✔developmental hearing loss
, Threshold (+it's measurements) - correct answer ✔✔describes how soft a sound a patient can
hear
dB HL NORMAL HEARING - correct answer ✔✔<25 dB HL
dB HL Mild Hearing Loss - correct answer ✔✔26 - 40 dB HL
dB HL Moderate Loss - correct answer ✔✔41 - 55 dB HL
dB HL Moderate // Severe Loss - correct answer ✔✔56 - 70 dB HL
dB HL Severe Hearing Loss - correct answer ✔✔71 - 90
dB HL Profound Hearing Loss - correct answer ✔✔> 90
Bone Conduction - correct answer ✔✔the conduction of sound to the inner ear through the
bones of the skull
- sound waves directly into cochlea via the bones of the skull
Air Conduction - correct answer ✔✔the transmission of sound vibrations to the eardrum
through the external auditory meatus
Audiogram for conductive hearing loss - correct answer ✔✔will show elevated thresholds by air
conduction and normal thresholds by bone conduction
- air // bone gap will be present
Audiogram for sensorineural hearing loss - correct answer ✔✔
