Microbiology: bacteria, virus, mycoplasma Flashcards

1
Q
  • MC cause of acute endocarditis

- native valve (tricuspid valve) in IV drug user

A

staph aureus

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2
Q

2nd MC cause of UTI in sexually active female

A

staph saprophyticus

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3
Q
  • MC cause of bacterial meningitis in adults
  • MC cause of CAP in adults
  • MC cause of otitis media in children
A

strep pneumonia

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4
Q

marantic endocarditis with abdominal malignancy

A

strep bovis

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5
Q

osteomyelitis (+) brodie abscess

A

staph aureus

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6
Q

SCARLET FEVER

A

strep pyogenes

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7
Q

MC cause of prosthetic valve endocarditis

keyword: PROSTHETICS

A

staph epidermidis

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8
Q

tampon using causing toxic shock syndrome

A

staph aureus

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9
Q

bullous impetigo

A

staph aureus

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10
Q

impetigo contagiosa

A

strep pyogenes

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11
Q

scalded skin syndrome (ritter disease)

A

staph aureus

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12
Q

fournier’s gangrene

A

strep pyogenes

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13
Q

ARF

A

strep pyogenes

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14
Q

endocarditis after GI surgery

A

enterococcus faecalis

Group D strep

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15
Q

MC cause of neonatal sepsis, meningitis

A

Strep agalactiae

GBS

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16
Q

salad or mayonaisse causing gastroenteritis

A

staph aureus

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17
Q

dental caries

A

strep mutans

VIRIDANS

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18
Q

granulomatous infantseptica

A

listeria monocytogenes

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19
Q

floppy baby syndrome

A

clostridium botulinum

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20
Q

the only clostridium that is non-motile

A

c. perfringens

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21
Q

MC cause of death in pulmonary anthrax

A

pulmonary hemorrhage

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22
Q

triad of botulism

A
  • symmetric descending flaccide paralysis (with prominent bulbar involvement)
  • absence of fever
  • intact sensorium
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23
Q

subacute bacterial endocarditis

A

strep sanguis

VIRIDANS

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24
Q

toxic shock syndrome associated with septic abortion

A

c. sordelli

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25
Q

cell inhibited by c. tetani

A

renshaw cell

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26
Q
  • nontraumatic myonecrosis in immunocompromised patients

- may indicate possible GI malignancy

A

c. septicum

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27
Q

waterhousen-friederichsen syndrome

A

n. menigitides

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28
Q

schick test

A

c. diphtheriae

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29
Q

MC cause acute epiglottits

what sign?

A

HiB

- thumb sign

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30
Q

MC site of asymptomatic gonococcal infection in women

A

endocervix

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31
Q

bacillary dysentery

A

shigella species

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32
Q
reactive arthritis (reitter's syndrome)
Triad:
- urethritis
- uveitis
- arthritis
A

campylobacter jejuni

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33
Q

pontiac fever

A

legionella hemophilia

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34
Q
  • MC cause of otitis externa
  • MC cause of malignant otitis externa in diabetics
  • MC cause of chronic suppurative otitis media
A

pseudomonas aeruginosa

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35
Q

bubonic plague

A

yersinia pestis

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36
Q

weil’s syndrome

A

leptospira interrogans

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37
Q

3rd MC cause of nosocomial UTI

A

pseudomonas aeruginosa

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38
Q

chancroid

A

haemophilus ducreyi

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39
Q

granuloma inguinale (donovanosis)

A

klebsiella granulomatosis

40
Q

mesenteric adenitis

A

yersinia enterolitica

41
Q

fifth disease (erythema infectiosum)

A

parvovirus b19

42
Q

MC aids-defining illness

A

pneumocystis jiroveci

43
Q

HPV that causes skin and plantar warts, verruca vulgaris

A

HPV 1,2,4,7

44
Q
  • condyloma acuminata

- most common viral STD

A

HPV 6 & 11

45
Q

carcinoma of the cervix, vulva, penis and anus

A

HPV 16, 18, 31, 33

46
Q

tinea/ pityriasis versicolor

A

malasezzia furfur

47
Q

hemorrhagic cystitis and nephropathy in patients with solid organ (kidney) and bone marrow transplants

A

BK polyoma virus

48
Q

gardener/ rose-handled disease

A

sporothrix schenkii

49
Q

valley fever

A

coccidioides immitis

50
Q

causes progressive multifocal leukoencephalopathy in patients with aids

A

JC polyoma virus

John Cunningham virus

51
Q

ramsay hunt syndrome

A

VZV (HHV3)

- disease aka. herpes zoster oticus

52
Q

heterophil negative mononucleosis

A

CMV (HHV5)

53
Q

laryngotracheobronchitis/ croup

what sign?

A

parainfluenza 1 & 2

- steeple sign

54
Q

4th disease

A

s. aureus

aka. - filatow-duke’s syndrome, SSSS, ritter’s disease

55
Q

Infectious mononucleosis

heterophil positive mononucleoisis

A

EBV (HHV4)

56
Q

1st disease

A

measles virus

57
Q

2nd disease

A

strep pyogenes

- scarlet fever

58
Q

3rd disease

A

rubella

59
Q

6th disease

A

HHV6 or 7

aka. - exanthem subitum, roseola infantum, “sudden rash”

60
Q

culture negative subacute bacterial endocarditis

2 organisms

A
  • eikenella corrodens

- kingella kingae

61
Q

gram (+) bacilli, aerobic
lecithin (+)
indole (+)

A

c. sordelli

62
Q

gram (+) bacilli, aerobic
lecithin (-)
indole (-)

A

c. septicum

63
Q

gram (+) bacilli, aerobic
lecithin (+)
indole (-)

A

c. perfringens

64
Q

gram (+) bacilli, aerobic
lecithin (-)
indole (variable)

A

c. tetani

65
Q

most virulent bacteria

A

yersinia pestis

66
Q

the only gram (+) bacteria that produces LPS

A

listeria monocytogenes

67
Q

shepherd’s crook appearance

A

leptospira interrogans

68
Q

hot tub folliculitis

A

pseudomonas aeruginosa

69
Q

lymphogranuloma venereum

A

chlamydia trachomatis

70
Q

buddying yeast of captain’s or mariner’s wheel formation

A

paracoccidioides brasilienses

71
Q

MCC of meningoencephalitis in HIV

A

cryptococcus neoformans

72
Q

MCC of meningitis among aged 2-18 yo

A

n. meningitides

73
Q

MCC of urethritis

A

n. gonorrhea

74
Q

one of the primary causes of meningitis in infants from 3-36 months of age

A

HiB

75
Q

MCC of septic arthritis in sexually active individuals

A

n. gonorrhea

76
Q

MCC of bacillary dysyntery

A

s. sonnei

aka. duval’s bacillus

77
Q

MCC of hyperacute bacterial conjunctivitis

A

n. gonorrhea

ophthalmia neonatorum

78
Q
  • most severe form of bacillary dysentery

- MCC of EPIDEMIC dysentery

A

s. dysenteriae type 1

aka. shiga bacillus

79
Q

aka. flexner’s bacillus, hiss and russell’s bacillus

A

s. flexneri

80
Q

aka. newcastle manchester bacillus

A

s. boydii

81
Q

salmonella species

A

s. typhi
s. enteritidis
s. typhimurium
s. cholaraesius

82
Q

vibrio species

-route

A

v. cholerae - fecal oral route
v. parahemolyticus - contaminated RAW SEAFOOD
v. vulnificus - TRAUMA to skin, SHELLFISH HANDLERS or ingestion of RAW SHELLFISH

83
Q

“triple positive”

oxidase, catalase, urea

A

h. pylori

84
Q

urease (+) bacteria

PCHUNKSS

A

PCHUNKSS

proteus
cryptococcus
h pylori
ureaplasma
nocardia
klebsiella
s. epidermidis
s. saprophyticus
85
Q

bacteremia results in the seeding of many organs with OSTEOMYELITIS, PNEUMONIA, MENINGITIS

A

s. choleraesuis

86
Q

widal test

A

salmonella typhi

87
Q

5A’s of klebsiella

A
Aspiration pneumonia
Abscess in lungs and liver
Alcoholics
diAbetics
currAnt jelly sputum
88
Q

MC cause of bacterial gastroenteritis associated witn ingestion of undercooked chicken

A

campylobacter jejuni

89
Q

septicemia commonly seen in patients with sickle cell anemia and cancer

A

s. cholerasuis

90
Q
  • MCC of duodenal ulcers and chronic gastritis

- second leading cause of gastric ulcer

A

h. pylori

91
Q

friedlander’s pneumonia

- usually seen in acoholics

A

klebsiella pneumoniae

92
Q

ABCDEG of diphtheria

A
ADP-ribosylation
B-prophage
Corynebacterium
Diphtheria
Elongaction factor 2
Granules

(+) schick test

93
Q

chloramphenicol is static but CIDAL to the following

NBSH

A

NBSH

n. meningitidis
b. fragilis
s. pneumonia
h. influenza

94
Q

halbersteadter-prowazeki inclusions

A

chlamydia trachomatis

95
Q
  • transmitted via medical devices, hands of hospital health workers
  • usually affects patients staying > 1week in the hospital
A

pseudomonas aeruginos

96
Q

PSEUDOMONAS

A

PSEUDOMONAS

Pneumonia, Pyocyanin
Sepsis
Ecthyma gangrenosum
UTIs
Diabetes, drug use
Osteomyelitis (puncture wounds)
Mucoid polysaccharide capsule
Otitis externa (swimmer's ear)
Nosocomial infections
exotoxin A
Skin infectious (hot tub folliculits)