early concepts - exam 3

Question 1

normal hearing

Answer 1

-10-25

Question 2

mild hearing loss

Answer 2

26-40

Question 3

moderate hearing loss

Answer 3

41-55

Question 4

moderately severe hearing loss

Answer 4

56-70

Question 5

severe hearing loss

Answer 5

71-90

Question 6

profound hearing loss

Answer 6

> 91

Question 7

PTA freqs

Answer 7

500, 1000, 2000, (4000)

Question 8

normal hearing type

Answer 8

AC & BC within -10-25 dB across all freqs

Question 9

conductive HL

Answer 9

BC normal hearing
AC worse

ABG >/= 10

issue in the MIDDLE EAR

Question 10

SNHL

Answer 10

AC & BC both outside normal range (>25)

ABG < 10

issue in INNER EAR

Question 11

mixed hearing loss

Answer 11

AC & BC both outside the normal range (>25)

AC worse than BC

ABG >/= 10

issue in MIDDLE & INNER EAR

Question 12

normal peak admittance for adults

Answer 12

0.37-1.66 mmhos

Question 13

normal peak pressure for adults

Answer 13

-100-50 daPa

Question 14

normal ECV for adults

Answer 14

0.9-2.0 ml

Question 15

type A tymps

Answer 15

everything normal

Question 16

type As tymps

Answer 16

shallow

normal peak pressure

reduced peak admittance

increased stiffness, middle ear effusion

Question 17

type Ad tymps

Answer 17

deep

normal peak pressure

higher than normal admittance

scarred or flaccid TM, ossicular disontinuity

Question 18

type B tymps

Answer 18

essentially flat - no peak pressure or admittance

high or low ECV

Question 19

type C tymps

Answer 19

negative pressure peaks beyond -100 daPa

eustachian tube dysfunction, middle ear effusion