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Gram Negative Flashcards

1
Q

Gram negative rods; non-lactose fermenters

A

Salmonella
Shigella
Proteus mirabilis
P. aeruginosa

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2
Q

Lactose fermenter; green sheen on EMB agar; facultative

A

E. coli

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3
Q

Lactose fermenter; urease +; extended spectrum betalactamase

A

K. pneumoniae

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4
Q

Gram negative; comma-shaped; microaerophilic; skirrows agar

A

C. jejuni

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5
Q

Gram negative; comma-shaped; urease positive

A

H. pylori

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6
Q

Gram negative; non lactose fermenter; motile; oxidase +; H2S producer

A

Salmonella

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7
Q

Gram negative; non lactose fermenter; non motile; oxidase negative; H2S non producer

A

Shigella

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8
Q

Gram negative; non lactose fermenter; swarming; oxidase negative; H2S producer; urease

A

Proteus mirabilis

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9
Q

Gram negative; non lactose fermenter; oxidase positive; H2S non producer; obligate aerobe; fruity odor; MDR

A

Pseudomonas aeruginosa

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10
Q

Lactose fermenters

A

Citrobacter
Klebsiella
E. coli
Enterobacter

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11
Q

Gram negative rod; Urease positive

A

K. pneumoniae
H. pylori
P. mirabilis

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12
Q

Gram negative rod; H2S producer

A

Salmonella

Proteus mirabilis

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13
Q

Gram negative rod; H2S nonproducer

A

Shigella

P. aeruginosa

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14
Q

E. coli enterotoxin which causes watery diarrhea

A

Heat stable toxin

Heat labile toxin

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15
Q

E. coli enterotoxin which causes bloody diarrhea (HUS)

A

Verotoxin (Shiga-like)

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16
Q

Enterobacteriaceae

A 
MESSY SPECK
Morganella
Escherichia
Shigella
Salmonella
Yersinia
Serratia
Proteus
Enterobacter
Citrobacter
Klebsiella
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17
Q

MCC of community-acquired UTI

A

E. coli

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18
Q

Causes neonatal meningitis

A

B group streptococci (S. agalactiae)
E. coli
L. monocytogenes

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19
Q

E. coli strain which causes watery diarrhea; Traveller’s diarrhea

A

ETEC

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20
Q

E. coli strain which causes watery diarrhea of long duration, mostly in infants, often in developing countries

A

EPEC

P-Pedia, Philippines

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21
Q

E. coli strain which causes bloody diarrhea; hemolytic colitis; HUS

A

EHEC or STEC (Shiga-like toxin producing E. coli)

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22
Q

E. coli strain which causes bloody diarrhea

A

EIEC

EHEC

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23
Q

DOC for UTI caused by E. coli in the Philippines

A

Quinolones

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24
Q

Salmonella test which detects antibodies in patient’s serum

A

Widal test

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25
Virulence factor of Salmonella which causes typhoid fever
Vi capsular antigen
26
Chronic carriage of Salmonella affects what organ?
Gallbladder
27
Tx for Salmonella gallbladder carriage
Ampicillin
28
MCC of osteomyelitis in patients with sickle cell anemia
Salmonella choleraesuis
29
Stepwise fever, anorexia, malaise, relative bradycardia. Typhoid fever suspect. Best specimen is?
Blood
30
Abdominal pain, bloating, constipation, rose spots, hepatosplenomegaly, jaundice. Typhoid fever suspect. Best specimen is?
Urine
31
Week of complication: Bleeding, ileitis, pneumonia. Typhoid fever suspect. Best specimen is?
Stool
32
DOC of Salmonella in the Philippines
Amoxicillin Chloramphenicol Cotrimoxazole
33
Shigella dysenteriae type 1 is also called as?
Shiga bacillus
34
Shigella dysenteriae type 2 is also called as?
Schmitz bacillus
35
Shigella flexneri is also called as?
Hiss and Russell's bacillus
36
Shigella boydii is also called as?
Newcastle Manchester bacillus
37
Shigella sonnei is also called as?
Duval's bacillus
38
DOC for shigellosis?
Ciprofloxacin | Nalidixic acid in children
39
Shooting star motility
Vibrio
40
Shigellosis pandemic is caused by?
V. cholerae 01 biotype El Tor (Cholera El Tor)
41
Rice watery stools; washer woman's hands
Cholera
42
DOC for cholera
Tetracycline | Alternative: azithromycin
43
Raw chicken
C. jejuni
44
MCC cause of bacterial gastroenteritis
C. jejuni
45
C. jejuni is associated with?
GBS | Reiter's syndrome
46
Tx for C. jejuni infection
Symptomatic tx only | Erythromycin for severe disease
47
Gold standard dx test for H. pylori
EGD with biopsy
48
Dx test for H. pylori used to document cure
H. pylori stool antigen
49
Facultative gram - rod with large polysaccharide capsule
K. pneumoniae
50
MCC of pneumonia (necrotizing) in alcoholics
K. pneumoniae
51
Currant jelly sputum; nosocomial
K. pneumoniae
52
DOC for K. pneumoniae infection
Cephalosporins alone or with aminoglycosides
53
Causes struvite stones
P. mirabilis
54
Produces pyocyanin (blue-green pigment); sweet grape-like odor
P. aeruginosa
55
Grows in hospital respirators and humidifiers
P. aeruginosa
56
Virulence factor of P. aeruginosa which damages cilia and mucosal cells
Pyocyanin
57
Causes hot tub folliculitis; puncture wound osteomyelitis; green nail syndrome
P. aeruginosa
58
MCC of otitis externa, malignant otitis externa in DM, and CSOM
P. aeruginosa
59
What type of pneumonia does P. aeruginosa causes?
VAP
60
Causes peritonitis in patients undergoing peritoneal dialysis
P. aeruginosa
61
Causes ecthyma gangrenosum
P. aeruginosa
62
Predominant anaerobe of human colon
B. fragilis
63
Causes abdominal abscess
B. fragilis
64
Gram negative rods; lactose fermenter
E. coli | K. pneumoniae

Microbiology (9 decks)

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