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Microbiology 2 Flashcards

Staph, Strep, Neisseria, Moraxella (81 cards)

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1
Q

Cause of meningitis for neonates and immunocompromised

A

S. agalactiae (most common)
E. coli
Listeria

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2
Q

Cause of meningitis for infants (1-23 months)

A

H. influenza b

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3
Q

Cause of meningitis for 5-29 years old

A

N. meningitidis

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4
Q

Localized scalded skin syndrome

A

Pemphigus neonatorum/Bullous impetigo

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5
Q

SAU toxin that causes SSS

A

Exfoliative/Epidermolytic toxin

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6
Q

SAU cytotoxin that is toxic to WBCs

A

Panton-Valentin-Leukocidin (gamma toxin)

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7
Q

Hyaluronidase

A

Duran-Reynal Factor / Spreading factor

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8
Q

Bacterial endocarditis following prosthetic heart valve insertion

A

Staph. epidermidis

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9
Q

Slime-producing staph

A

S. epidermidis, S. aureus

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10
Q

Selective/differential medium for MRSA

A

CHROMagar (Alain Rambach)
contains cefoxitin

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11
Q

SAU colonies on CHROMagar

A

mauve-colored

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12
Q

Coagulase test reagent

A

Rabbit’s plasma (EDTA)

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13
Q

DNAse test positive organisms

A

“SSS Mo”
S. aureus S. pyogenes Serratia
Moraxella

“DNA green yung MoSSS”
(+) colorless
(-) remains green

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14
Q

“Dog bite infection”
VP negative

A

Staph. intermedius (PYR+) “inter PYR”
Staph. hyicus

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15
Q

“Porcelain white” in LSS

A

S. albus (S. epidermidis)

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16
Q

Novobiocin susceptible/resistant

A

S. epidermidis ≥16mm
S. saprophyticus

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17
Q

“Foam-loving” 10% CO2 foam (HACEK)

A

Aggregatibacter (Haemophilus) aprophilus

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18
Q

Tear drop forms (HACEK)

A

Cardiobacterium hominis

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19
Q

S. pyo M protein is antiphagocytic because

A

it binds to beta globulin FACTOR H

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20
Q

TSST-1

A

Enterotoxin F

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21
Q

Strep pyrogenic exotoxin A & C causes

A

Scarlet fever
Streptococcal Toxic shock-like syndrome

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22
Q

Erysipelas causative agent

A

S. pyogenes

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23
Q

Erysipeloid causative agent

A

E. rhusiopathiae

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24
Q

Erythrasma causative agent

A

Corynebacterium minutissimum

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25
Scarlet fever (susceptibility test)
Dick's test
26
Schick's test
Diptheria
27
Scarlet fever (diagnostic test)
Schultz-Charlton test
28
Post-streptococcal sequelae
Rheumatic heart fever AGN
29
Multi-drug resistant (MDR) organism (Enterococci) causes
Nosocomial infections: UTI, bacteremia, endocarditis, pneumonia
30
Upper respiratory tract/oral normal flora
Viridans strep HACEK
31
Subacute bacterial endocarditis (in damaged heart valves) gram positive causative agent
Viridans strep
32
Subacute bacterial endocarditis gram negative causative agent
HACEK
33
Lobar/community-acquired pneumonia, rust-colored sputum
S. pneumoniae
34
Currant jelly sputum
K. pneumoniae
35
Bullet/Lancet/Flame-shaped bacteria
S. pneumoniae
36
Bullet-shaped virus
Rhabdoviridae (Rabies)
37
Bile solubility test reagent (tube)
2% sodium desoxycholate
38
Skin test for pneumococcal antibodies
Francis test
39
PYR substrate
L-pyrrolidonyl-B-naphthylamide
40
PYR reagent & positive result
PDAC p-dimethylaminocinnamaldehyde (+) cherry red
41
HH reagent & positive result
Ninhydrin reagent (detects glycine) (+) purple/deep blue
42
(+) CAMP, HH
Group B Strep (S. agalactiae)
43
Group D Enterococcus vs Non-enterococcus
(+)PYR, 6.5% NaCl, 10C growth on nutrient agar Penicillin resistance
44
Taxo A
Group A Strep Bacitracin >10mm
45
Taxo P
S. pneumoniae Optochin >14mm
46
Taxo P chemical name
Ethylhydrocupreine HCl
47
Differentiate Strep. anginosus from other beta-hemolytic strep
VP positive
48
Viridans strep causing gastrointestinal malignany (cancer)
S. bovis
49
Nutritionally-variant streptococci
Satelliting-streptococci, thiol-requiring (cysteine, pyridoxal) Abiotrophia & Granulicatella spp.
50
(+) Satellitism in Staph streak test
H. influenzae "dew drop colonies"
51
CPOP
1. Micrococcus 2. Neisseria, Haemophilus 3. Plesiomonas, Aeromonas, Vibrio 4. Oxidizer: Pseudomonas, Burkholderia
52
CPON
1. Staphylococcus 2. All Enterobacteriaceae except Plesiomonas 3. Francisella 4. Oxidizer: Stenotrophomonas, Acinetobacter
53
Aerobic gram negative cocci
Neisseria, Moraxella
54
Anaerobic gram negative cocci
Veilonella
55
Endotoxin triad of symptoms
Fever, DIC, septic shock
56
Has IgA protease as virulent factor
Meningitis causative agents: Neisseria Haemophilus S. pneumoniae
57
Disseminated gonococcal infections
Pelvic inflammatory disease Fitz-Hugh-Curtis syndrome (peritoneum) Arthritis
58
Gram neg cocci causing DIC, Waterhouse-Friderichsen syndrome
N. meningitidis
59
N. meningitidis capsule associated with community-acquired meningitis
Polysaccharide capsule B
60
Common cause of otitis media
Moraxella catarrhalis
61
Sensitive to cotton swab
N. gonorrhoeae B. pertussis
62
A male is diagnostic for gonorrhoea if
Positive smear with symptoms
63
Diagnostic procedure for non-toxin-producing organisms
Culture
64
Incubation of Neisseria
35C in 3-5% CO2 for 3 days (72 hours)
65
Selective medium for pathogenic Neisseria
TMA
66
Thayer Martin inhibitors
Vancomycin (gram +) Colistin (gram -) Nystatin (fungi/yeast)
67
Modified Thayer Martin
TMA with Trimethoprim lactate (swarming Proteus)
68
Martin Lewis fungi/yeast inhibitor
Anisomycin "MLA MYC Manila, my city"
69
New York City Agar fungi/yeast inhibitor
Amphotericin B "AmB American boy, New York"
70
GC-LECT
New York City agar with LINCOMYCIN
71
Selective media for N. gonorrheae that uses LYSED HORSE blood
NYCA
72
Smooth, glistening, claylike colonies (BAP)
Neisseria elongata
73
Colony may be moved intact over agar surface
M. catarrhalis ("hockey puck") H. ducreyi
74
Catalase negative, nondiplococci Neisseria
N. elongata (rod-shaped)
75
Also grow in TMA
Acinetobacter Capnocytophaga Kingella
76
Taxo N positive result
Oxidase test (+) purple - Neisseria, Moraxella
77
Superoxol test reagent & positive result
30% H2O2 (+) vigorous bubbling - N. gonorrhoeae
78
Asaccharolytic bacteria
Acinetobacter iwoffi Moraxella Oligella Alcaligenes
79
Moraxella catarrhalis identifying tests
DNAse positive Butyrate esterase positive Asaccharolytic
80
N. meningitidis subtypes
A, B, Y, W-135
81
Specimen for NAAT of N. gonorrhoeae and Chlamydia
Urethral swab, urine

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