strep. pnuemoniae and strept viridans Flashcards
what type of hemolysis do they demonstrate
alpha hemolysis
how does alpha hemolysis differ from beta and gamma
alpha has a greenish zone around the colonies
Sir Pneumo’s armor means the bacteria is
surround by a polysaccharide capsule
Sir pneumoniae’s chin being exposed means
it has a sensitivity to optochin
Double lances means
bacteria is a lancet-shaped diplococci on microscope
The feet in mud means
strep. Pneu is bile soluble
how is bile solubility demonstrated
lysis and disappearance of its colonies
Rusty chest armor means
it can cause lobar pneumonia and this typically has a rust-colored sputum
strepto pneu is the leading cause of?
MOPS
strepto pneu is the leading cause of meningitis, otitis media, pneumonia and sinusitis
what is the virulance factor produced by strepto pneu
IgA protease
what does IgA protease do
cleaves IgA antibodies leading to bacterial adherence to mucosal surfaces
patients with what disease are more susceptible to strepto pnuemoniae
sickle cell disease
besides penicillin and amcillin what other drug can be used?
macrolides
3 axes flag means
ceftriaxone may be used to treat pneumococci
vaccine sign means
PCV vaccine is recommended and the PPSV23 vaccine are suggested for at risk children and adults
what does the green jester mean
viridans group streptococci
why does the green jester lack an amor
they are non-encapsulated
what does the armor around the chin mean on the jester
resistant to optochin
boots on the donkey mean
viridans are bile- insoluable
yellow teeth on the donkey represent
it is apart of the normal flora of the mouth
which plays a part in tooth decay and dental caries
streptococcus mutans
damaged mitre hat on jester means
common cause of infectice endocarditis in pts with mitral valve disease
viridans utilize what
dextrans
what do dextrans help with
allowing the bacteria to adhere to tooth enamel and fibrin-platelet aggregates
