AUDIOGRAM

Question 1

define an audiogram

Answer 1

pure otne audigram is a subjective test of hearing

-relies on patients responses

test demonstrats how loud in decibels a sound at a certian freuqncy must be to be heard

Question 2

how is the chart of an audiogram plotted

Answer 2

frequency in herzts (x axis) is plotted against loudness or intesnity in decibels (y axis)- which is logarithmic

Question 3

normal decibel to hear sound

Answer 3

20dB or less

Question 4

summary of audoigrams

Answer 4

google SNHL severity audiogram

air conduction thresholds and bone conduction thresholds anre measured

difference in the two is called an airbone gap (ABG)

this CHL is quantified by the size of ABG

SNHL is quantified as mild moderate severe or profound

Question 5

summaries a tympanogram

Answer 5

measure of middle ear compliancee

it is importantin case of conductive hearing loss

probe insereted in to the ear
-produces a tone and can change pressure
-in return it measures the change in volume at those pressure

this is displayed on a tympanogram