Micro - Bacteria Flashcards Preview

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Flashcards in Micro - Bacteria Deck (24)
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1
Q

most common bacterial STD

A

Chlamydia

2
Q

polyarticular arthritis

A

Neisseria gonnorhea

3
Q

Petechial rash all over (3)

A

Neisseria gonnorhea
Ricketsia
CMV

4
Q

Maltose fermenting Neisseria

A

MeninGococci

M for maltose and G for glucose

5
Q

MOA of resistance for STD to vaccine

A

rapid antigenic shifts of pious proteins in N. gonococci

  • not seen in N meningococci (have a vaccine)
6
Q

IgA protease (2)

A

Nesseira (both types)

Streptococcal pneumonia

7
Q

Gullien barre associated (2)

A

Camplobacter jejuni

URI

8
Q

extracellular elementary bodies made by which organism?

A

found in Chlamydia trachomatis and

-retiulate bodies intracellular

9
Q

Clue cells

A

Vagninosis

Gardenella vaginalis

10
Q

Selective growth of a bloody diarrhea causing bug

A

42 degrees

Camplylobacter jejuni

Oxidase +
gram -
comma shaped

11
Q

Phenylenediamine Test

A
Oxidase test
Positive
-Campylobacter
-Neisseria
-Helicobacter
-Vibrio

Negative
-enterobacteriaeae

12
Q

McConkey Test

A

lactose fermentation
Positive
-E coli

Negative

  • Salmonella
  • Shigella
13
Q

Exotoxin producing that blocks protein synthesis (4)

A

Blocks E2F
Corynebacterium dipheriae - toxin
Pseudomonas aerugenosa - Exotoxin A

Inactivated 60s ribosome by removing adenine form rRNA
Shigella -Shiga toxin
EHEC - Shiga like toxin

14
Q

Infects prosthetics and IV catheters

  • Virulence factor?
A

Staphylococcus epidermidis

  • biofilm production

Catalase +, coag -,
novobiocin sensitive,
nonhemolytic

15
Q

HIV atypical pneumonia

A

Pneumocystis jiroveccii

Diagnosis- direct fluorescent Ab stain or methenamine silver stain

16
Q

Aged cheese and deli meats association -

  • Causal agent?
  • worry w/ 2 populations
A

Listeria monocytogenes

Bad for pregnant women (spontaneous abortion and amnionistis)

meningitis in older immunocompromised
-IV ampicillin/penicillin Rx

everyone else -gastroenteritis - self resolving

17
Q

Catalase (+) (7)

A

PLACESS for CATs

Psuedomonas
Listeria
Aspergillus
Candida
E coli
Staph aures
Serratia
18
Q

Optochin Test to differentiate between

A

Streptococcal viridins - Resistant

Streptococcal pneumonia - Sensitive

19
Q

Novobiocin Test to differentiate between

A

Antibiotic test

Staphylococcus saprophyticus - resistant
Staphylococcus epidermidis - sensitive

20
Q

Thayer martin test

A

Nesseiria

21
Q

2 organisms that have super antigens -> Shock

A

Staph aureus (TSST1)

Streptococcus pyrogens - Exotoxin A

22
Q

Protein A

A

Staph aureus virulence factor that prevents the Fc of IgG to recognize

23
Q

pastries, ham and potato salad, rapid onset - 6 hrs N/V

caused by?

A

Staph aureus w/ enterotoxin A

Bacillus cereus is also <6 hrs but w/ rice

24
Q

lesion w/ edematous borders and black eschar

A

cutaneous anthrax - bacillus anthracis

  • done by increasing cAMP w/ toxin

boxcar shape gram +