gram positive Flashcards

1
Q

aerobic bacilli

A

listeria
bacillus
corynebacterium

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2
Q

anaerobic bacilli

A

clostridium

cutibacterium (propionibacterium)

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3
Q

aerobic branching filaments

A

nocardia

weakly acid fast

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4
Q

anaerobic branching filaments

A

actinomyces

not acid fast

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5
Q

Catalase positive

A

staphylococcus

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6
Q

Catalase negative

A

streptococcus

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7
Q

catalase and coagulase positive

A

S. aureus

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8
Q

Catalase positive
coagulase negative
novobiocin insensitive

A

S. saprophyticus

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9
Q

Catalase positive
coagulase negative
novobiocin sensitive

A

S. epidermidis

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10
Q

Strept
alpha hemolysis (partial, green)
optochin insensitive
bile insolubility

A

Viridans strep
S. mutans
S. mitis

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11
Q

Strep
alpha hemolysis (partial, green)
optochin sensitive
bile soluble

A

pneumococcus (encapsulated)

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12
Q

OVRPS

A

Optochin
viridans resistant
pneumococcus sensitive

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13
Q

Strep
beta hemolysis (clear)
bacitracin insensitive
negative PYR

A

GBS

S. agalactiae

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14
Q

Strep
beta hemolysis (clear)
bacitracin sensitive
positive PYR

A

GAS

S. pyogenes

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15
Q

B-BRAS

A

Bacitracin
group B is resistant
group a is sensitive

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16
Q

What kind of hemolysis does S. aureus have

A

Beta

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17
Q

MRSA is resistance because

A

altered penicillin binding protein

mecA gene from staph chromosomal cassette involved in penicillin resistance

18
Q

Contaminates blood cultures

infects prosthetic devices and IV catheters (biofilms)

A

S. epidermidis

19
Q

Normal flora of female genital tract and perineum

2nd MCC uncomplicated UTI in young women

A

S. saprophyticus

20
Q

Pneumococcus can cause

A

meningitis
otitis media
PNA
sinusitis

21
Q

Makes dextrans that bind fibrin platelet aggregates on damaged heart valves causing subacute bacterial endocarditis

A

S. sanguinis

22
Q

Subacute endocarditis after GI/GU procedures

A

Enterococci

23
Q

Labs for enterococcus

A

Catalase negative
PYR positive
variable hemolysis
more resilient that strep, can grow in 6.5% NaCl and bile

24
Q

Normal colonic flora that is resistant to penicillin G

A

Enterococcus

25
Medusa head
Bacillus anthracis
26
Bacteremia and subacute endocarditis associated with colon cancer
Strep bovis
27
Oral/facial abscesses that drain through sinus tracts often assoc. with dental carries, extraction, maxillofacial trauma forms yellow sulfur granules
Actinomyces
28
PID with IUDs
Actinomyces
29
Tx Actinomyces with
Penicillin
30
Treat Nocardia with
Bactrim
31
Pulmonary infection in immunocompromised that mimics TB but is PPD negative cutaneous infections after trauma in immunocompetent can spread to CNS
Nocardia
32
Nocardia is found in the
soil
33
Actinomyces is found in
normal oral, reproductive, GI flora
34
Gram + that have long, branching filaments resembling fungi
Nocardia | Actinomyces
35
Causes amnionitis, septicemia, spontaneous abortion, granulomatosis infantiseptica, neonatal meningitis, meningitis in immunocompromised
Listeria monocytogenes
36
ingestion of unpasteurized dairy products cold deli meats trans placental transmission via vagina grows well at regfridgerator temps
listeria monocytogenes
37
Tumbles in broth
Listeria monocytogenes
38
Prophylaxis with azithromycin when CD4+ count <50 in HIV
Mycobacteria avium
39
Hand infection in aquarium handlers
Mycobacteria marinum
40
Cervical lymphadenitis in children
Mycobacterium scrofulaceum