GNR Flashcards

1
Q

What genera are lac pos

A

CEEKS:
Citrobacter
Enterobacter
Escherichia
Klebsiella
Serratia

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2
Q

What genera are lac neg

A

EMPPSSY:
Edwardsiella
Morganella
Proteus
Providencia
Yersinia

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3
Q

What are the characteristics for lac pos

A

facultative anaerobes
non fastidious
most normal fecal flora
ubiqutious in nature
reduced nitrates to nitrites
oxidase neg
all ferment glucose
G- rods pleomorphic
large grey mucoid colonies
differentiates into lac pos or neg

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4
Q

what species are in Escherichia

A

E coli O157H7

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5
Q

what species are in Enterobacter

A

3 AAC
aerogenes
cloaecae
agglomerans

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6
Q

what species are in Citrobacter

A

3 FAK
freundii
koseri
amalonaticus

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7
Q

what secies are in Klebsiella

A

2 OP
pnemoniae
oxytoca

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8
Q

what species are serratia

A

2 ML
Marcescens
liquefaciens

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9
Q

what would a tests for Escherichia look like

A

Indole- pos
Citrate- neg
Motility- pos

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10
Q

what would a tests for Enterobacter look like

A

Morph:moderate mucoid
MAC:lac pos
Indole: neg
Ornithine: pos
Citrate: pos
Motility: pos

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10
Q

what would a tests for Citrobacter look like

A

Morph:
MAC: lac pos/ delayed
C. fruendii: I-, H2S+, O-
C. koseri: I+, H2S-, O+
Indole:
Ornithine:
Citrate:

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11
Q

what would a tests for Klebsiella look like

A

Morph:very mucoid
MAC:
Indole:
-Pneumoniae:neg
-Oxytoca: pos
Ornithine:neg
Citrate:pos
Motility: neg

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12
Q

what would tests for Serratia look like

A

MAC:delayed lac pos
Indole:neg
Ornithine:pos
Citrate:pos
DNase: pos

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13
Q

what would tests for E coli O157H7 look like on stool sample

A

SMAC:-
MUG:-
LAT:+
Chromagar: mauve

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14
Q

What are the types of pathogenic e coli

A

ETEC
EAEC
EPEC
EIEC
EHEC/ STEC

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15
Q

tribe proteeae has what 3 genera in it

A

proteu, provendencia, morganella

16
Q

what species are in the proteus genera

A

vulgaris
mirabilis

17
Q

what species are in the morganella genera

A

morganii

18
Q

what species are in the providencia genera

A

stuartii
rettgeri
alcalificans

19
Q

what species are in the Salmonella genera

A

enterica
ser. typhi

20
Q

what species are in the Shigella genera

A

sonnei
flexneri
boydii
dysenteriae

21
Q

what species are in the Yersinia genera

A

enterocolitica
pestis

22
Q

what would tests for Proteus look like

A

H2S: pos
PAd: pos
Urease: pos
motility:pos
- vulgaris: Indole pos, ornithine neg
- mirabilis: indole neg, ornithine pos

23
Q

what would tests for Morganella look like

A

H2S: neg
PAD: pos
Urease: pos
Ornithine: pos
Citrate: neg

24
Q

what would tests for Providencia look like

A

H2S: neg
PAD: pos
Urease:variable
Ornithine: neg
Citrate: pos

25
Q

what would tests for Salmonella look like

A

H2S: pos
PAD: neg
Urease: neg
Ornithine: pos
Citrate: pos

26
Q

what would tests for Shigella look like

A

H2S: neg
PAD: neg
Urease: neg
Ornithine: neg
Citrate: neg
-sonnei: ONPG pos, Ornithine pos

27
Q

what would tests for Serratia look like

A