Gram-Positive Bacilli Flashcards
(26 cards)
Medusa head colonies or rhizoid (BAP)
B anthracis
Bamboo pole arrangement in culture
B anthracis
String of pearls (MHA w/ penicillin)
B anthracis
True or false: B anthracis is beta-hemolytic and motile
FALSE
It is non-motile and non-hemolytic
Ground glass colonies
B anthracis
Hemolytic pattern of B cereus
B hemolytic
Iridescent sheen on EYA
C. botulinum
Strabismus (wandering eye)
C botulinum
Double zone of hemolysis
C perfringens
Spores usually absent in solid media and thioglycollate broth
C perfringens
Only clostridial agent that’s aerotolerant
C perfringens
Important cause of antibiotic-associated pseudomembranous colitis
C difficile
Horse barnyard odor
C difficile
Medusa head + B-hemolytic
C septicum
Note: Also smoothly swarming
Clostridium that’s:
• Lecithinase (+)
• Lipase (+)
• C. perfringens
• C. botulinum
All diphteriae are urease negative except
Ulcerans & pseudo
Most commonly isolated Corynebacterium spp
C. amycolatum
Only bacteria that can cross the placenta
L monocytogenes
Granulomatosis infantseptica
Perinatal human listeriosis
L monocytogenes
Similarities btw Listeria and S agalactiae
• Neonatal meningitis
• CAMP (+)
• H.H. (+)
Only gram positive bacilli that is H2S (+)
E. rhusiopathiae
Only bacteria with which we use human blood
Gardnerella vaginalis
First drug used for TB
Streptomycin
• Mantoux
• Von Pirquet
• Volmer
• Intradermal/intracutaneous
• Scratch
• Patch
