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Clinical Microbiology > Misc GN orgs-- Special GNB > Flashcards

Misc GN orgs-- Special GNB Flashcards

1
Q

Which GNB organisms are special?

A

Pasturella
Aeromonas
Plesiomonas

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2
Q

What is special about the special GNB?

A

These have super power! They can ferment and are oxidative!

They are all indole and oxidase positive and will grow on routine media, but Pasteurella won’t grow on MAC.

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3
Q

Will Pasteurella grow on MAC?

A

NO.

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4
Q

What air is Pasteurella fond of?

A

facultative anaerobe

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5
Q

Is Pasteurella motile?

A

Non-motile

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6
Q

Gram stain Pasteurella?

A

Small poor staining GNB with bipolar staining

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7
Q

Pasteurella growth on BAP?

A

“Musty” smell with small transluscent colonies

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8
Q

What disease does Pasteurella cause?

A

Pasteurellosis–usually seen as cellulitis

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9
Q

What are the MC Pasteurella infections?

A

Wound infections

caused by P. multocida

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10
Q

Does Pasteurella grow on MAC?

A

Yes

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11
Q

Pasteurella Indole reaction?

A

Positive

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12
Q

Pasteurella Oxidase reaction?

A

Positive

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13
Q

Aeromonas oxidase reaction?

A

positive

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14
Q

Aeromonas indole reaction?

A

positive

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15
Q

Is Aeromonas fermentative?

A

Yes.

Ferments glucose.

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16
Q

Aeromonas environment?

A

Natural habitat is freshwater and seawater

17
Q

Does Aeromonas grow on routine lab media?

A

Yes, including MAC

18
Q

Aeromonas on BAP?

A

yes and Beta hemolytic

19
Q

What disease does Aeromonas cause?

A 
Cellulitis and wound infection
Septicemia
GI infections
UTIs
Ear infections
20
Q

Aeromonas acquired by?

A

contact with contaminated water or soil

21
Q

Plesiomonas environment?

A

Natural habit is water and soil

carried by many cold-blooded animals

22
Q

Plesiomonas oxidase reaction?

A

positive

23
Q

Plesiomonas indole reaction?

A

positive

24
Q

Does Plesiomonas grow on routine media?

A

Yes

25
Q

Plesiomonas environment?

A

Natural habitat is water and soil

26
Q

What disease does Plesiomonas cause?

A

Gastrointestinal disease

27
Q

Plesiomonas acquired by?

A

Humans acquire through ingestion of contaminated food

Clinical Microbiology (13 decks)

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