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Pathogens > Bacterial > Flashcards

Bacterial Flashcards

1
Q

rat bite

A
  • Streptobacillus moniliformis in USA
  • Spirillium minus in asia
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2
Q

Erythrasma

A

Corynebacterium minutissimum

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3
Q

Slow growing Mycobacterium

A
  • > 2 weeks
  • MAC
  • M. kensasii
  • M. marinum
  • M. xeopi
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4
Q

Rapid growing Mycobacterium

A
  • > 2 weeks
  • M. Abscessus
  • M. chelonae
  • M. fortuitum
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5
Q

Mycobacterium need help growing

A
  • M. marinum
  • M. haemophilum
  • M. ulcerans
  • the above three need cooler temperatures
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6
Q

Mycobacterium requiring molecular ID, HIV disseminated MAC that doesn’t grow

A

M. genavense

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7
Q

Which NTM is usually a contaminant?

A

M. gordonae

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8
Q

Which NTM cross react with IGRA?

A
  • think MaSK
  • M. marinum
  • M. szulgai
  • M. kansasii
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9
Q

Which NTM is usually associated with aspiration pneumonia and is not a true infection?

A

M. fortuitum
- if clear cause of aspiration may not need antibiotic therapy or only short course

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10
Q

Which NTM is associated with corneal disease?

A

M chelonae

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11
Q

Which NTM is associated with line infection?

A

M. mucogeicum

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12
Q

Which NTMs are associated with HIV?

A
  • MAC
  • M. kansasii
  • M. genavense (treat like MAC until susceptibility returns)
  • M. haemophilum
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13
Q

two types of MAC pulmonary dz

A

1) older male, smoker, COPD, cavitary, rapidly progressive, fibronodular, more readily treatable
2) lady windermere, scoliosis, hypomastia, bronchiolitis, slowly progressive, harder to treat, usually suppressive

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14
Q

only NTM that responds to TB drugs

A

M. kansasii

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15
Q

MAC complex spp

A
  • M. boletti
  • M. massiliense
  • M. abscessus
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16
Q

Which two MAC subspecies have inducible macrolide resistance? erm(41) gene

A
  • M. boletti
  • M. abscessus
17
Q

Most common NTM causing post plastic surgery infections?

A
  • M. chelonae
  • M. fortuitum
  • M. abscessus
18
Q

Which NTM is associated with nail salons?

A
  • M. fortuitum
19
Q

NTM associated with tattoo?

A

M. chelonae
- from manufacture or from cutting with tap water (often to obtain grey color)

20
Q

HIV and MAC - when to start HAART?

A

start ART usually 2-3 weeks after MAC therapy started

21
Q

what drug is thought to increase mortality in HIV pts with NTM?

A

clofazimine

22
Q

NTM in HIV

A

usually disseminated MAC with GI route of infection

23
Q

most common NTM in cancer pts

A

M. chelonae

24
Q

M. leprae

A
  • does not grow in culture
  • see it on stain
    -most humans resistant
25
Q

PZA is useful for with NTM?

A

None of them!

26
Q

what percentage of MAC pulm cases have abscessus as well?

A

10-12%

27
Q

Organisms whose growth is stimulated by iron

A
  • vibrio vulnificus
  • E coli
  • Listeria moncytogenes
  • Aeromonas hydrophilia
  • Rhizopus
  • Yesrsinia enterocolitica
28
Q

6 pathogens from cat bites

A
  • rabies
  • Pasteurella spp
  • anaerobes (fusobacteria)
  • Bartonella henselae
  • S. aureus
  • Strep spp
29
Q

Eikenella corrodens

A
  • anaerobic small gram neg bacillus
  • Resistant to ceph, clinda, metro, erythro
30
Q

Aeromonas

A
  • aerobic gram neg bacilli
  • GI and wound infections
  • Resistant to pen, amp, cefazolin
31
Q

Erysipelas

A
  • acute onset, painful, rapid progression
  • strep gps A, B, C,G
  • predisposition venous stasis, lymphatic disruption
32
Q

Erysipelothrix rhusiopathiae

A
  • exposure to swine or fish
  • severe throbbing pain
  • subacute erysipelas (erysipeloid)
  • txt pen, ceph, clinda, FQP
33
Q

Pastia’s lines

A

seen with scarlet fever and sandpaper rash, red lines in axilla and inguinal fold

Pathogens (2 decks)

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