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Gram Positive Flashcards

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0
Q

Gram positive cocci in clusters
Catalase positive
Coagulase negative
Novobiocin sensitive

A

Staphylococcus epidermidis

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1
Q

Gram positive cocci in clusters
Catalase positive
Coagulase positive

A

Staphylococcus aureus

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2
Q

Gram positive cocci in clusters
Catalase positive
Coagulase negative
Novobiocin resistant

A

Staphylococcus saprophyticus

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3
Q

Gram positive cocci in chains
Catalase negative
Alpha hemolytic
Bile optochin sensitive

A

Streptococcus pneumoniae

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4
Q

Gram positive cocci in chains
Catalase negative
Alpha hemolytic
Bile optochin resistant

A

Viridans streptococci

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5
Q

Gram positive cocci in chains
Catalase negative
Beta hemolytic
Bacitracin sensitive

A

Streptococcus pyogenes

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6
Q

Gram positive cocci in chains
Catalase negative
Beta hemolytic
Bactiracin resistant

A

Streptococcus agalactiae

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7
Q

Gram positive cocci in chains
Catalase negative
Gamma hemolytic

A

Group D streptococci

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8
Q 
Gram positive rods
Spore-forming
Aerobic
Nonmotile
Box car shaped
A

Bacillus anthracis

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9
Q 
Gram positive rods
Spore forming
Aerobic
Motile
Reheated fried rice syndrome
A

Bacillus cereus

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10
Q

Gram positive rods
Spore forming
Anaerobic
From bulging cans

A

Clostridum botulinum

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11
Q

Gram positive rods
Spore forming
Anaerobic
Tennis racket like

A

Clostridium tetani

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12
Q 
Gram positive rod
Spore forming
Anaerobic
Lecithinase
Gas-forming
A

Clostridum perfringens

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13
Q

Gram positive rods
Spore forming
Anaerobic
Pseudomembranes

A

Clostridium difficile

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14
Q 
Gram positive rods
Non spore forming
Aerobic
Nonmotile
Curved, Chinese characters
A

Corynebacterium diphtheriae

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15
Q 
Gram positive rods
Non spore forming
Aerobic
Curved
Tumbling motility
A

Listeria monocytogenes

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16
Q

Most common cause of acute endocarditis

A

Staphylococcus aureus

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17
Q

Most common cause of subacute and native valve endocarditis

A

Viridans streptococci

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19
Q

Most common cause of prosthetic valve endocarditis

A

Staphylococcus epidermidis

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20
Q

Toxic shock syndrome
+ focus
+ blood culture

A

Streptococcal

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21
Q

Toxic shock syndrome
No focus
Blood culture negative

A

Staphylococcal

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22
Q

Most common cause of ventriculoperitoneal shunt infections

A

Staphylococcus epidermidis

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23
Q

Drug of choice for Staphylococcus epidermidis

A

Vancomycin

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24
Q

Positive PYR test

A

Streptococcus pyogenes

Group D streotococcus

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25
Toxin in necrotizing fasciitis caused by Streptococcus pyogenes
Exotoxin B
26
Most common cause of pharyngitis
Streptococcus pyogenes
27
Toxin responsible for staphylococcal toxic shock syndrome
TSST-1
28
Toxin responsible for streptococcal toxic shock syndrome
Exotoxin A
29
In acute rheumatic fever, antibodies react to which proteins
M proteins
30
Drug of choice for streptococcal infections
Penicillin G
31
Most common cause of neonatal pneumonia, sepsis and meningitis
Streptococcus agalactiae
32
Which Group D streptococcus can grow in 6.5% NaCl
Enterococcus faecalis
33
Causes marantic endocarditis
Streptococcus bovis
34
Most common cause of CAP
Streptococcus pneumoniae
35
Most common cause of otitis media and sinusitis
Streptococcus pneumoniae
36
Enhances adhesion of pathogen to heart valves
Glycocalyx
37
Dental caries
Streptococcus mutans
38
Anthrax: calmodulin-dependent adenylate cyclase
Edema factor
39
Anthrax: inhibits signal transduction in cell division
Lethal factor
40
Cause of death in anthrax
Pulmonary hemorrhage
41
Drug of choice in anthrax
Ciprofloxacin
42
Enterotoxin for emetic form of Bacillus cereus infection
Heat stable | Staphylococcal like-superantigen
43
Enterotoxin for diarrheal form of Bacillus cereus infection
Heat labile | Cholera like-cAMP
44
Action of tetanospasmin
Inhibits release of glycine from Renshaw cells
45
Drug of choice for tetanus
Penicillin | Metronidazole
46
Tetanus Contaminated Uncertain vaccination or < 3 doses
TeAna and ATS
47
Tetanus Clean, minor wound Uncertain vaccination or < 3 doses
TeAna only
48
Tetanus Clean, minor wound > 3 doses Last dose given < 10 years
None
49
Tetanus Clean, minor wound > 3 doses Last dose given > 10 years
TeAna only
50
Tetanus Contaminated wound > 3 doses Last dose given < 5 years
None
51
Tetanus Contaminated wound > 3 doses Last dose given > 5 years
TeAna only
52
Most common immunologic types of botulinum toxin
A, B, E
53
Botulinum toxin used in Botox
A
54
Treatment for gas gangrene
Penicillin
55
Granules seen in C diphtheriae
Metachromatic/Babes-Ernst/volutin
56
Toxigenicity of C diphtheriae
Modified Elek test
57
Diphtheria exotoxin acts on
Elongation factor 2 | ADP ribosylation
58
Treatment for diphtheria
Penicillin G
59
Listeria toxin interacting with E-cadherin on cell surface
Internalin
60
Listeria toxin causing escape from phagosomes
Listeriolysin
61
Listeria toxin propelling bacteria from one cell membrane to another
Actin rockets
62
Treatment of listeriosis
Ampicillin
63
Most common cause of bacterial meningitis in the elderly
Streptococcus pneumoniae

Microbiology (12 decks)

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