Gram Positive Cocci Testing Flashcards
(23 cards)
anaerobic bacteria
Peptostreptococcus
aerobic bacteria must be differentiated via what test
catalase
catalase positive bacteria
staphylococcus
catalase negative bacteria
streptococcus
test to differentiate catalase positive bacteria
coagulase
coagulase positive bacteria
staphylococcus aureus
coagulase negative bacteria
staphylococcus epidermidis, staphylococcus saprophyticus, staphylococcus hemolyticus
test to differentiate catalase negative bacteria
hemolysis on blood agar
hemolysis is complete and clear
beta hemolytic bacteria
hemolysis is partial and green
alpha hemolytic bacteria
no hemolysis
gamma hemolytic bacteria
beta hemolytic bacteria must be differentiated with what test
PYR test
PYR positive bacteria
streptococcus pyogenes (group A)
bacteria that do not produce PYR can be differentiated with what test
CAMP test
CAMP positive bacteria
streptococcus agalactiae (group B)
CAMP negative bacteria
lancefield groups C, F, G or latex agglutination test
alpha hemolytic bacteria can be differentiated with what two tests
optochin disc and bile solubility tests
optochin SS and bile solubility positive bacteria
streptococcus pneumoniae
optochin RR and bile solubility negative bacteria
viridans group streptococci
gamma hemolytic bacteria can be differentiated with what test
a positive bile esculin test
a positive bile esculin test can lead to what two tests to differentiate gamma hemolytic bacteria
growth in 6.5% NaCl or PYR test
bacteria that is positive for PYR and has growth in 6.5% NaCl (3)
enterococcus, enterococcus faecalis, enterococcus faecium
bacteria that is negative for PYR and does not grow in 6.5% NaCl
streptococcus bovis
