Inner ear
Coclea
Semicircular canals- fluids in there move when you move
your head and that tells your body where you're at in
space. Problems here is what can cause vertigo.
3. Why do you want Because of risk for mastoiditis
to palpate the
mastoid process
during a suspect-
ed ear infection
4. Malleus (begin-
ing part of the
bone)
Umbo (tail end of
the bone)
Cone of light (ei-
ther 5'oclock (R
, CMN 568 Unit 1: Management of Ear Infections Study Guide
_`- _`- _`- _`- _`- _`- _`- _`- _`- _`-
with complete solutions.
_`- _`- _`-
ear) or 7 o'clock
(L ear))
5. What is the other Also called Swimmer's ear
name of otitis ex-
terna
6. What is Otitis Ex- It's Cellulitis of the soft tissues of the external auditory
terna canal
7. What are the Pseudomonas aeruginosa
pathogens that
cause otitis ex- Staphylococcus aureus
terna
Aspergillus or other fungus (especially diabetics)
8. What are risk fac- Moisture in the ear from swimming, showering, etc
tors for otitis ex-
terna Trauma to the external canal fro Q-tips, ear plugs, hearing
aids, or scratching
Keeping ears too clean removes protective cerumen and
increases pH which promotes bacterial growth
9. Pictire of otitis
externa
10. If they have oti- They will have pain
tis externa what
happens if you You won't necessarily see this with otitis media
push on the pin-
na or pull on the
tragus
11. What are s/s of Edema and erythema of external canal, may be swollen
otitis externa
Severe ear pain, made worse by movement of pinna or
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