Gram - algorithim Flashcards
G- ox+ comma shaped grows ar 42 degrees
Campylobacter jejuni
G- diplococci can’t ferment maltose
N. gonnorhoaea
G- oxidase + comma shaped
Campylobacter
Cholera
H. pylori
Grows on Thayer-Martin media
Neisseria (G- diplococci)
H. flu
Gram - coccobacillus that grows only with factor V (NAD+) and factor X (hematin)
Gram - encapsulated
E. coli
Klebsiella
H. flu
N. meningitidis
Salmonella
G- rod lac- ox- urease- transmitted to humans via domestic animal feces
Yersinia
Klebsiella
G- rod fast lac+ ox- mucoid colonies
N. meningitidis
G- diplococci that ferments maltose
Gram - rods
E. coli
Klebsiella
Serratia
Enterobacter
Citrobacter
Yersinia
Shigella
Salmonella
Proteus
Pseudomonas
G- lactose fermenters
Fast - Klebsiella, E. coli, Enterobacter
Slow - Citrobacter, Serratia
Gram - rods slow lactose fermenters
Citrobacter
Serratia
G- with special media
Neisseria (Thayer Martin)
Bordetella pertussis (Bordet-Gegou/potato agar)
H. flu (Chocolate agar with factors V and X)
E. coli, Klebsiells (MacConkey agar; lac+)
Proteus, Pseudomonas, Shigella, Salmonella, Yersinia (MacConkey, lac-)
Legionella (charcoal yeast agar with cysteine and iron)
G- ox+ comma shaped grows in alkaline enviornment
Vibrio cholerae
G- transmitted via dog and cat bites
Pasturella
(cellulitis, osteomyelitis)
G- rod fast lactose fermenter green metallic sheen on EMB
E. coli
G- rod slow lactose fermenter red colonies
Serratia
Gram - rod lac- ox- urease+
Proteus
Gram - rod lac- ox- urease-
Shigella
Salmonella
Yersinia
Gram - IgA protease producers
H. flu
Neisseria
C. jejuni
G- ox+ comma shaped grows ar 42 degrees
G- ox+ comma shaped urease +
H. pylori
G- rod fast lac+ ox+ mucoid colonies
Klebsiella
G- urease +
H. pylori
Proteus
Klebsiella
Citrobacter
G- rod slow lactose fermenter
G- rod pigment produceras
E. coli (green metallic sheen on EMB)
Serratia (red)
Pseudomonas (blue-green; pyocyanin)
Yersinia
G- rod lac- ox- urease- transmitted to humans via domestic animal feces
G- coccobacilli
H. flu
Pasturella
Brucella
Bordetella pertussis
G- rod lac- ox+ blue-green pigment exotoxin producer
Pseudomonas
G- ox+ comma shaped urease +
H. pylori
N. meningitidis vs. N. gonorrhoaea
N. meningitidis = maltose fermenter
N. gonnorhoaea = non-maltose fermenter
Which antibiotics are ineffective against G-‘s and why?
Penicillin G and vancomycin
Outer membrane inhibits entry
Gram - rod fast fermenters
E. coli
Klebsiella
Enterobacter
N. gonnorhoaea
G- diplococcus that doesn’t ferment maltose
V. cholerae
G- ox+ comma shaped grows in alkaline enviornment
Gram - rod lac- ox-
Proteus
Shigella
Salmonella
Yersinia
Salmonella
G- rod lac- ox- urease-
Pseudomonas
G- rod lac- ox+ blue-green pigment exotoxin producer
G- oxidase +
Pseudomonas
H. pylori
Campylobacter
Cholera
Produces beta-galactosidase
Gram - rod lac- ox+
Pseudomonas
E. coli
G- rod fast lactose fermenter green metallic sheen on EMB
Shigella
G- rod lac- ox- urease-
Proteus
Gram - rod lac- ox- urease+
Gram - with exotoxins
Pseudomonas (exotoxin A)
ETEC (LT,ST)
EHEC (SLT)
Shigella
Bordetella
G- diplococci ferments maltose
N. meningitidis
Enterobacter
G- rod fast lactose fermenter high antibiotic resistance
Serratia
G- rod slow lactose fermenter red colonies
G- diplococci
Neisseria
Gram - rod fast lactose fermenter high antibiotic resistance
Klebsiella
Enterobacter