Head and Neck Flashcards
where is kiesselbach’s plexus?
most common origin of what?
nose in the “picking zone”
(it’s a confluence of arteries on the posterior superior nasal septum)
nose bleeds
epistaxis
anterior vs posterior?
which is more severe?
anterior: unilateral
posterior: bilateral, sensation of blood in the back of the throat
posterior is more severe
most common causes of otitis externa
Pseudomonas
Staph aureus
most common causes of otitis media
Strep pneumoniae
nontypeable H influenzae
Moraxella catarrhalis
most common cause of ludwig’s angina
Bacteroides
most common viral and bacteral causes of pharyngitis
viral: rhinoviruses, adenoviruses
bacterial: S. pyogenes (GAS)
**signs and symptoms are the same for viral and bacterial pharyngitis. one cannot differentiate without microbiology testing.
most common cause of epiglottitis
H influenzae type B (Hib)
2nd MCC: strep
thumbprint sign
what is it?
diagnosis?
demonstrates swollen epiglottis obliterating the vallecular
epiglottitis
steeple sign
what is it?
diagnosis?
indicative of subglottic narrowing
croup
physical appearance of patient with epiglottitis vs retropharyngeal abscess
epiglottitis: sit leaning forward with neck slightly flexed
retropharyngeal abscess: recumbency and hyperextension of the neck