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Step One R&M > Gram - algorithim > Flashcards

Gram - algorithim Flashcards

1
Q

G- ox+ comma shaped grows ar 42 degrees

A

Campylobacter jejuni

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1
Q

G- diplococci can’t ferment maltose

A

N. gonnorhoaea

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2
Q

G- oxidase + comma shaped

A

Campylobacter

Cholera

H. pylori

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3
Q

Grows on Thayer-Martin media

A

Neisseria (G- diplococci)

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3
Q

H. flu

A

Gram - coccobacillus that grows only with factor V (NAD+) and factor X (hematin)

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3
Q

Gram - encapsulated

A

E. coli

Klebsiella

H. flu

N. meningitidis

Salmonella

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4
Q

G- rod lac- ox- urease- transmitted to humans via domestic animal feces

A

Yersinia

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5
Q

Klebsiella

A

G- rod fast lac+ ox- mucoid colonies

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6
Q

N. meningitidis

A

G- diplococci that ferments maltose

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6
Q

Gram - rods

A

E. coli

Klebsiella

Serratia

Enterobacter

Citrobacter

Yersinia

Shigella

Salmonella

Proteus

Pseudomonas

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7
Q

G- lactose fermenters

A

Fast - Klebsiella, E. coli, Enterobacter

Slow - Citrobacter, Serratia

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7
Q

Gram - rods slow lactose fermenters

A

Citrobacter

Serratia

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8
Q

G- with special media

A

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)

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10
Q

G- ox+ comma shaped grows in alkaline enviornment

A

Vibrio cholerae

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11
Q

G- transmitted via dog and cat bites

A

Pasturella

(cellulitis, osteomyelitis)

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12
Q

G- rod fast lactose fermenter green metallic sheen on EMB

A

E. coli

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13
Q

G- rod slow lactose fermenter red colonies

A

Serratia

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14
Q

Gram - rod lac- ox- urease+

A

Proteus

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14
Q

Gram - rod lac- ox- urease-

A

Shigella

Salmonella

Yersinia

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14
Q

Gram - IgA protease producers

A

H. flu

Neisseria

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16
Q

C. jejuni

A

G- ox+ comma shaped grows ar 42 degrees

17
Q

G- ox+ comma shaped urease +

A

H. pylori

18
Q

G- rod fast lac+ ox+ mucoid colonies

A

Klebsiella

19
Q

G- urease +

A

H. pylori

Proteus

Klebsiella

20
Q

Citrobacter

A

G- rod slow lactose fermenter

22
Q

G- rod pigment produceras

A

E. coli (green metallic sheen on EMB)

Serratia (red)

Pseudomonas (blue-green; pyocyanin)

23
Q

Yersinia

A

G- rod lac- ox- urease- transmitted to humans via domestic animal feces

25
Q

G- coccobacilli

A

H. flu

Pasturella

Brucella

Bordetella pertussis

26
Q

G- rod lac- ox+ blue-green pigment exotoxin producer

A

Pseudomonas

28
Q

G- ox+ comma shaped urease +

A

H. pylori

29
Q

N. meningitidis vs. N. gonorrhoaea

A

N. meningitidis = maltose fermenter

N. gonnorhoaea = non-maltose fermenter

30
Q

Which antibiotics are ineffective against G-‘s and why?

A

Penicillin G and vancomycin

Outer membrane inhibits entry

31
Q

Gram - rod fast fermenters

A

E. coli

Klebsiella

Enterobacter

33
Q

N. gonnorhoaea

A

G- diplococcus that doesn’t ferment maltose

34
Q

V. cholerae

A

G- ox+ comma shaped grows in alkaline enviornment

35
Q

Gram - rod lac- ox-

A

Proteus

Shigella

Salmonella

Yersinia

36
Q

Salmonella

A

G- rod lac- ox- urease-

36
Q

Pseudomonas

A

G- rod lac- ox+ blue-green pigment exotoxin producer

38
Q

G- oxidase +

A

Pseudomonas

H. pylori

Campylobacter

Cholera

39
Q

Produces beta-galactosidase

A
40
Q

Gram - rod lac- ox+

A

Pseudomonas

41
Q

E. coli

A

G- rod fast lactose fermenter green metallic sheen on EMB

43
Q

Shigella

A

G- rod lac- ox- urease-

44
Q

Proteus

A

Gram - rod lac- ox- urease+

45
Q

Gram - with exotoxins

A

Pseudomonas (exotoxin A)

ETEC (LT,ST)

EHEC (SLT)

Shigella

Bordetella

46
Q

G- diplococci ferments maltose

A

N. meningitidis

47
Q

Enterobacter

A

G- rod fast lactose fermenter high antibiotic resistance

48
Q

Serratia

A

G- rod slow lactose fermenter red colonies

49
Q

G- diplococci

A

Neisseria

50
Q

Gram - rod fast lactose fermenter high antibiotic resistance

A

Klebsiella

Enterobacter

Step One R&M (38 decks)

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