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IUMICRO > Anaerobic GNCs, GPC, GNRs > Flashcards

Anaerobic GNCs, GPC, GNRs Flashcards

1
Q

Name the organism

  • Gram Stain
  • Colony Morphology
  • Normal Flora
  • Distinguishing reactions/characteristics
A

Veillonella spp.

  • GNC
  • Circular, smooth/creamy, raised
  • Oral, GU (GI)
  • Nitrate POSITIVE
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2
Q

Peptococcus Niger
- Distinguishing reactions/characteristics

A

Produces a black to olive green pigment

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3
Q

Name the organism

  • Gram Stain
  • Colony Morphology
  • Normal Flora
  • Distinguishing reactions/characteristics
A

Finegoldia Magna

  • GPC
  • “Donut appearance”
  • GI
  • Most pathogenic of the Anaerobic GPCs
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4
Q

Name the organism

  • Gram Stain
  • Colony Morphology
  • Normal Flora
A

Parvimonas micra

  • GPC
  • Circular, smooth, raised — white to gray color, slight beta hemolysis
  • Oral
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5
Q

Name the organism

  • Gram Stain
  • Colony Morphology
  • Normal Flora
  • Distinguishing reactions/characteristics
  • GLC pattern
A

Peptostreptococcus anaerobius

  • GPC (elongated)
  • Circular, smooth/creamy, raised
  • Oral, GI
  • SPS susceptible
  • a…IC
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6
Q

Objective 8: Recognize an organism that is typically found as a contaminant in blood or CSF cultures

A

Staphylococcus saccharolyticus

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7
Q

Normal flora of Staphylococcus saccharolyticus and Streptococcus intermedius, respectively

A

Skin and Oral

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8
Q

Objective 7: Associate disease manifestations with their causative agent. (generally based on where organisms are normal flora)
- Streptococcus intermedius

A

Brain abscess

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9
Q

Name the organism

  • Gram Stain
  • Colony Morphology
  • Normal Flora
  • Distinguishing reactions/characteristics
  • GLC pattern
A

Fusobacterium necrophorum

  • GNR - short and long
  • “Fried egg” appearance
  • Oral
  • Lemierre’s syndrome, brain abscess
  • aB
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10
Q

Name the organism

  • Gram Stain
  • Colony Morphology
  • Normal Flora
  • Distinguishing reactions/characteristics
  • GLC pattern
A

Fusobacterium nucleatum

  • GNR, spindle-shaped with pointed/tapered ends
  • “CIS” or “Bread crumbs” appearance (not seen)
  • Oral
  • Indole POSITIVE
  • aB
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11
Q

Objective 7: Associate disease manifestations with their causative agent. (generally based on where organisms are normal flora)
- Fusobacterium necrophorum

A

Lemierre’s syndrome, brain abscess

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12
Q

Name the organism

  • Gram Stain
  • Colony Morphology
  • Normal Flora
  • Distinguishing reactions/characteristics
  • GLC pattern
A

Fusobacterium mortiferum

  • GNR, “Spaghetti and meatballs” appearance (from broth)
  • “Whirl” appearance
  • GI
  • Resistant to antibiotics
  • aB
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13
Q

Name the organism

  • Gram Stain
  • Colony Morphology
  • Normal Flora
  • Distinguishing reactions/characteristics
  • GLC pattern
A

Bacteroides fragilis

  • GNR (vacuoles may be present in broth)
  • “CIS” appearance
  • GI
  • Stimulated by bile, pencillinase producer - resistant to antibiotics, Indole
    NEGATIVE
  • ap (ib) iv
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14
Q

Name the organism

  • Gram Stain
  • Colony Morphology
  • Normal Flora
  • Distinguishing reactions/characteristics
  • GLC pattern
A

Bacteroides ovatus

  • GNR- egg shaped (vacuoles may be present in broth)
  • Wet, mucoid
  • GI
  • Stimulated by bile, pencillinase producer - resistant to antibiotics, Indole
    POSITIVE
  • ap (ib) iv
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15
Q

Bacteroides thetaiotaomicron

  • Gram Stain
  • Colony Morphology
  • Normal Flora
  • Distinguishing reactions/characteristics
  • GLC pattern
A
  • GNR, “greek letters” (vacuoles may be present in broth)
  • Wet, mucoid
  • GI
  • Stimulated by bile, pencillinase producer - resistant to antibiotics, Indole
    POSITIVE
  • ap (ib) iv
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16
Q

Objective 6: Recognize the test that allows the B. fragilis group to be divided into two groups

A

Indole

17
Q

Porphyromonas spp.
- Distinguishing reactions/characteristics
- Normal flora

A
  • Produces buff/tan-black pigment; brick red fluorescence with UV light
  • Mouth
18
Q

Name the organism

  • Gram Stain
  • Colony Morphology
  • Distinguishing reactions/characteristics
A

Prevotella melaninogenica

  • GNR
  • yellow to brown/black colonies
  • produces pigment that causes colonies to become black/brown, brick red
    fluorescence with UV light, beta lactamase production
19
Q

Normal flora
- Prevotella oralis
- Prevotella bivia
- Prevotella disiens

A
  • Mouth
  • GU
  • GU
20
Q

Name the organism

  • Gram Stain
  • Colony Morphology
  • Distinguishing reactions/characteristics
A

Campylobacter ureolyticus

  • GNR
  • “Pits” into agar
  • pitting of agar, urease positive
21
Q

Objective 11: List the anaerobic GNRs which will grow on KV (PV) or LKV (KVLB)

A

Fustobacterium spp. (except F. nucleatum)
Bacteroides spp.
Prevotella spp.

22
Q

Objective 3: Identify the Gas Liquid Chromatography (GLC) patterns of the following:

A

Peptostreptococcus anaerobius

23
Q

Objective 3: Identify the Gas Liquid Chromatography (GLC) patterns of the following:

A

Fusobacterium spp.

24
Q

Objective 3: Identify the Gas Liquid Chromatography (GLC) patterns of the following:

A

Bacteroides fragilis ‘group’

IUMICRO (25 decks)

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