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Flashcards in Atypical Bacteria Deck (33)
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1

No cell wall
Walking pneumonia

Mycoplasma

2

Abscess
Acid fast
Aerobe
Filamentous
Slow growing

Nocardia

3

Anaerobe
Draining sinus tracts
Filamentous
Mycetoma
Sulfur granules

Actinomyces

4

Abscess
Foul-smelling
Mixed infection

Bacteroides fragilis

5

Painless ulcer (chancre)
Palm and sole rash
Spirochete
STD
Strict anaerobe
Syphilis
Unculturable

Treponema pallidum

6

Deer tick
Erythema chronicum migrans
Lyme disease

Borrelia burgdorferi

7

Antibiotic for Lyme patient < 8 years old

Ampicillin

8

Acid fast
Granuloma
Isoniazid
Lowenstein-Jensen medium
PPD

Mycobacterium tuberculosis

9

Anesthetic skin lesion
Leprosy
Nerve damage

Mycobacterium leprae

10

Elementary bodies
Iodine stain
Reticulate bodies
Trachoma
STD

Chlamydia trachomatis

11

Birds
Parrots

Chlamydia psittaci

12

Obligate intracellular growth
Southeastern Atlantic and south central states
Tick
Weil-Felix reaction

Rickettsia

13

Cat-scratch fever

Bartonella

14

Undulant fever

Brucella

15

Q fever

Coxiella burnetii

16

Tularemia

Francisella tularensis

17

Meningitis, sepsis (zoonotic)

Listeria monocytogenes

18

Rocky Mountain spotted fever, typhus

Rickettsia

19

Goats and sheep
Intracellular growth
Undulant fever
Unpasteurized milk and cheese

Brucella

20

Intracellular
Rabbit
Tularemia
Ulcer

Francisella tularensis

21

Baby
Cold enrichment
Intracellular growth
Meningitis
Milk products
Motility
Undercooked meat

Listeria monocytogenes

22

What are the hallmarks of Legionella infection?

Non-productive cough
Negative sputum Gram stain
Extrapulmonary signs (confusion, headache, and GI symptoms)

23

What is an important risk factor for Legionella infection?

Immunocompromised

24

What is one way to make a definitive diagnosis of Legionella infection?

Detection of antigens in urine

25

What is the major virulence factor of Legionella?

Intracellular growth

26

How would you confirm a Rocky Mountain Spotted Fever diagnosis?

Indirect immunofluorescence or latex agglutination procedures with a single diagnostic titer of 1:64

27

What lab procedure would give a definitive diagnosis of syphilis?

Specific antibody test

28

Why does Chlamydia not gram stain?

Its cell wall does NOT contain muramic acid

29

What is the pathogenesis of Chlamydia?

Elementary body = extracellular
**non-replicating and NOT metabolically active
**infectious

Reticulate body = intracellular
**replicating and metabolically active
**non-infectious

30

What is the most common bacterial opportunistic infection in adult HIV patients?

Mycobacterium avium