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Micro > Bacteriology > Flashcards

Bacteriology Flashcards

1
Q

Most severe form of meningococcemia

A

Waterhouse- friedrichsen syndrome (N. Meningitidis)

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2
Q

Most common cause of urethritis

A

Gonococcal urethritis (N. gonorrhoeae)

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3
Q

Most common cause of PID

A

N. Gonnorrhoeae

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4
Q

Violin string adhesions

A

Fitz hugh curtis syndrome

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5
Q

Most common cause of septic arthritis in sexually active adults

A

N. Gonorrhoeae

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6
Q

N. Gonorrhoeae has a usual co infection with

A

C. Trachomatis

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7
Q

Organisms that cause sub acute bacterial endocarditis

A 
HACEK
Haemophilus aphrophilus
Actinobacillus actinomycetemcomitans
Cardiobacterium hombis
Eikinella corrodens
Kingella kingae
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8
Q

Most common cause of human bite infection

A

Eikenella corrodens

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9
Q

Satellite phenomenon around S. aureus colonies

A

H. Influenzae

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10
Q

Most common cause of epiglottitis

A

H. influenzae

  • thumb sign
  • cherry red epiglotitis
  • tx: ceftriaxone
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11
Q

Steeple sign

A

Laryngotracheobronchitis
- parainfluenza
Tx: racemic epinephrine

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12
Q

Causes epiglotitis, meningitis, otitis media, pneumonia

A

H. Influenzae

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13
Q

2nd most common cause of otitis media

A

H. Influenzae

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14
Q

Cultured on regan- lowe charcoal medium

A

Bordetella pertussis

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15
Q

Pathogenesis of bordetella pertussis’ whooping

A

Tracheal cytotoxin

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16
Q

Visualize with silver stain

A

Legionella pneumophila

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17
Q

Cultured on charcoal yeast extract agar

A

Legionella pneumophila

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18
Q

3 most common cause of atypical pneumonia

A

Mycoplasma pneumoniae
Legionella pneumophila
Chlamydia pneumoniae

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19
Q

Facultative intracellular bacteria

A 
Salmonella
Brucella
Mycobacterium
Listeria
Francisella
Legionella
Yersinia
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20
Q

green metallic sheen on EMB

A

E. Coli

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21
Q

Lactose fermenters

A

Citrobacter
Klebsiella
E. Coli
Enterobacter

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22
Q

Most common cause of community acquired UTI

A

E. coli

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23
Q

2nd most common cause of neonatal meningitis

A

E. coli

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24
Q

Causes of neonatal meningitis

A

B grp streptococci (S. Agalactiae)
E. coli
Listeria monocytogenes

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25
Q

E. Coli strain of watery diarrhea (traveler’s diarrhea)

A

ETEC

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26
Q

E. Coli strain of watery diarrhea of long duration, mostly in infants, often in developing countries

A

EPEC

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27
Q

E. Coli strain of bloody diarrhea hemorrhagic colitis and HUS

A

EHEC

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28
Q

E. Coli strain of bloody diarrhea

A

EIEC

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29
Q

E. Coli strain of persistent watery diarrhea in children and patients infected with HIV

A

EAEC

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30
Q

Cultured in xylose lysine deoxycholate medium(XLD)

A

Salmonella spp.- produce h2s

Shigella- do not produce h2s

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31
Q

Most common cause of bacillary dysentery

A

Shigella sonnei (duval’s bacillus)

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32
Q

Most severe form of bacillary dysentery

A

Shigella dysenteriae type1- shiga bacillus

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33
Q

Most common cause of epidemic dysentery

A

Shigella dysenteriae type 1- shiga bacillus

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34
Q

Shooting star motility

A

Vibrio spp.

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35
Q

Cultured on TCBS agar

A

Vibrio spp.

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36
Q

Rice water stools; washer woman’s hands, secretory diarrhea

A

V. Cholera

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37
Q

Grows well at 42C on skirrows agar

A

Campylobacter jejuni

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38
Q

Most common cause of bacterial gastroenteritis

A

Campylobacter jejuni

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39
Q

Associated with guillan barre and reiter’s syndrome

A

Campylobacter jejuni

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40
Q

Triad of urethritis, uveitis, arthritis

A

Reiter’s syndrome( cant pee cant see cant climb a tree)

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41
Q

Urease positive bacteria

A

Proteus mirabilis
Klebsiella pneumoniae
Helicobacter pylori
Ureaplasma urealyticum

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42
Q

Facultative gram negative rods with large polysaccharide capsule

A

Klebsiella pneumoniae

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43
Q

Most common cause of pneumonia (necrotizing) in alcoholics

A

Klebsiella pneumoniae

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44
Q

Currant jelly sputum

A

Klebsiella pneumoniae

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45
Q

Swarming motility

A

Proteus mirabilis

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46
Q

Obligate aerobe

A

Pseudomonas aeruginosa

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47
Q

Grown on cetrimide agar

A

Pseudomonas aeruginosa

48
Q

Blue green pigment of Pseudomonas aeruginosa

A

Pyocyanin

49
Q

Hot tub folliculitis

A

Pseudomonas aeruginosa

50
Q

Most common cause of otitis externa, malignant otitis externa in diabetics and chronic suppurative otitis media

A

Pseudomonas aeruginosa

51
Q

Ventilator acquired pneumonia

A

Pseudomonas aeruginosa

52
Q

Typhilitis, shanghai fever

A

Pseudomonas aeruginosa

53
Q

3rd most common cause of nosocomial UTIs

A

Pseudomonas aeruginosa

54
Q

Ecthyma gangrenosum

A

Pseudomonas aeruginosa

55
Q

Undulating fever

A

Brucella abortus

56
Q

Transmitted thru dermacentor ticks with rabbits as reservoir

A

Francisella tularensis

57
Q

Most virulent bacteria

A

Yersinia pestis

58
Q

Bubonic, pneumonic, septicemic plague

A

Yersinia pestis

59
Q

Bipolar staining(safety pin)

A

Yersinia pestis

60
Q

Buttery colonies with musty odor

A

Pasteurella multocida

61
Q

Most important virulence factor of M. Tuberculosis

A

Cord factor

62
Q

Langhan’s giant cells

A

M. Tuberculosis

63
Q

Most common extrapulmonary form of TB

A

Scrofula

64
Q

Reservoir are humans and armadillos

A

M. Leprae

65
Q

Leonine facies

A

M. Leprae

66
Q

Bacteria with fungal like characteristics

A

Actinomycetes

67
Q

Weakly acid fast in fite faraco stain

A

Nocardia asteroides

68
Q

Smallest free living organisms

A

Mycoplasma pneumoniae

69
Q

Only bacteria with cholesterol in cell membrane

A

Mycoplasma pneumoniae

70
Q

Cultured on eaton’s medium

A

Mycoplasma pneumoniae

71
Q

Most common type of atypical pneumonia (walking pneumonia) pediatric 5yrs

A

Mycoplasma pneumoniae

72
Q

Most common infectious cause (extrapulmonary) of mycoplasma pneumonia

A

Stevens johnson syndrome

73
Q

Argyll robertson pupil; prostitute’s pupil

A

Treponema pallidum

74
Q

Most important diagnostic test in primary syphillis

A

Dark field microscopy

75
Q

Screening for secondary or tertiary syphilis

A

RPR/ VDRL

76
Q

Confirmatory teat for secondary/ tertiary syphilis

A

FTA-ABS

77
Q

Largest medically important bacteria

A

Borellia burgdorferi

78
Q

Cultured on BSK medium

A

Borrelia burgdorferi

79
Q

Lyme disease

A

Borrelia burgdorferi

80
Q

Transmitted by ixodes capsularis ( bite from deer ticks)

A

Borrelia burgdorferi

81
Q

Bell’s palsy, arthritis, cardiac block, erythema chronicum migrans

A

Lyme disease

Tx doxycycline

82
Q

Relapsing fever

A

Borrelia recurrentis

83
Q

Shepherd’s crook appearance

A

Leptospira interrogans

84
Q

Fletcher’s medium

A

Leptospira interrogans

85
Q

Ellinghausen-mccullough johnson harris(EMJH) medium

A

Leptospira interrogans

86
Q

Most severe form of leptospirosis

A

Weil syndrome

87
Q

Triad of weil syndrome

A

Jaundice ( orange cast skin)
Bleeding
Uremia

88
Q

Snow flake lesions in cxr

A

Leptospira interrogans

89
Q

Obligate intracellular bacteria

A

Ricketssia

Chlamydia

90
Q

Most common STD overall

A

Chlamydia trachomatis (types D-K)

91
Q

Most common cause of infectious eye blindness

A

Trachoma (C. Trachomatis types A-C)

92
Q

Halberstadter prowazek inclusions

A

C. Trachomatis

93
Q

Associated with Reiter’s syndrome

A

Campyobacter jejuni

C. Trachomatis types D-K

94
Q

Staccato cough

A

C. Trachomatis types D-K

95
Q

Lymphogranuloma venereum

A

c. Trachomatis L1-L3

96
Q

Atypical pneumonia assoc with atherosclerosis

A

Chlamydia pneumoniae

97
Q

Bird fancier’s disease

A

Chlamydia psittaci

98
Q

Divide by binary fission

A

Rickettsiae

99
Q

Detects antirickettsial antibodies by agglutination of proteus organisms

A

Weil felix reaction

100
Q

Rocky mountain spotted fever

A

Rickettsia rickettsii

101
Q

Rickettsial pox with eschar formation

A

Rickettsia akari

102
Q

Most lethal; no arthropod vector; no rash ; caused by coxiella burnetti

A

Q fever

103
Q

Cat scratch disease

A

Bartonella henselae

104
Q

Dog as reservoir transmitted thru dermacentor bite; forms morulae in cytoplasm of monocytes

A

Ehrlichia chaffeensis

105
Q

Clue cells with positive whiff test

A

Gardnerella vaginalis

106
Q

Dermacentor bite

A

Francisella tullarensis

Erlichia chaffeensis

107
Q

Painful genital ulcer

A

Chancroid ( haemophilus ducreyi)

108
Q

Painless ulcer

A

Chancre( primary syphilis treponema pallidum

109
Q

Condyloma lata

A

Secondary syphilis treponema pallidum

Condyloma acuminatum–> HPV

110
Q

Pseudo appendicitis( mesenteric adenitis)

A

Yersenia enterocolitica

111
Q

Granuloma inguinale(donovanosis)

A

Klebsiella granulomatis

112
Q

Beefy red ulcer

A

Klebsiella granulomatis

113
Q

Closed safety pin appearance ( donovan bodies)

A

Klebsiella granulomatis

114
Q

Pseudo buboe

A

Klebsiella granulomatis

115
Q

Most common cause of meningitis among aged 2-18 yrs

A

N. Meningitides

Micro (5 decks)

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