Gram Positive Rods Flashcards
1
Q
Spore forming Non motile Box cars nonhemolytic Catalase +
A
Bacillus anthracis
2
Q
Spore forming Motile Beta hemolytic Penicillin R Frosted glass appearance
A
Bacillus cereus
3
Q
Spore forming Motile Gamma hemolytic Catalase + Oxidase +
A
Bacillus subtilis
4
Q
Non spore forming Oxidase - Irregular shape Catalase + Chinese letters Pinpoint yellow Metachromatic granules
A
Corynebacterium diphtheriae
5
Q
Non spore forming Oxidase- H2S + Vancomycin R Catalase - Pinpoint clear
A
Erysipelothrix rhusiopathiae
6
Q
Nonspore forming H2S - Catalase + Bile esculin + CAMP + Oxidase - VP + Tumbling motility / umbrella Clear white small Beta hemolytic
A
Listeria monocytogenes
7
Q
Non spore forming H2S - Catalase - Oxidase - Hippurate +
A
Gardnerella vaginalis
8
Q
what organism is the Elek test done on?
A
C. diphtheriae
9
Q
what does the Elek test determine?
A
toxin production
10
Q
why do C. dipthheriae turn black on Tinsdale?
A
tellurite hydrolysis
11
Q
what organism produces a pseudomembrane on tonsils, uvula, or soft pallate?
A
C. diphtheriae
12
Q
what are key characterisitics of Erysipelothrix?
A
catalase -
H2S +
13
Q
what are Erysipelothrix infections most commonly associated with?
A
roses
14
Q
medusa head colonies
A
B. anthracis
15
Q
what bacillus spp is nonhemolytic?
A
B. anthracis