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Flashcards in deck 5 Deck (58)
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1

How many people will never get TSST-1 antibodies?

20%

2

What bacteria does yellow pus/discharge suggest?

staph aureus

3

What drug would you give in anticipation of either staph aureus TSS or Group A strep TSS?

vancomycin, clindamycin, and rifampin.[rifampin= mucous membrane penetration. clindamycin= stops toxin production. Vanco=strong Ab.]

4

What is a left shift in WBC

immature WBC meaning an infection

5

What are the 5 criteria for staph TSS?

1. Body temp >1022. Systolic BP<903. Diffuse rash/erythroderma4. Desquamation upon recovery5. Involvement of 3 or more organs

6

What is clindamycin used for?

protein synthesis inhibitor that has the capacity to inhibit exotoxin production at concentrations below its antimicrobial concentration

7

What does staph aureus need for TSST-1 production?

oxygen [tampons]

8

Does strep TSS need oxygen for production of TSST-1?

No they aerotolerant anaerobes but never use oxygen

9

What phase of bacterial growth is defined as enzymes being induced to allow bacterial growth?

Lag phase

10

What phase of bacterial growth is defined by doubling times?

log phase

11

What happens in post-exponential phase of bacterial growth?

toxin--small molecules signal a quorum and induces exotoxin production

12

What bacterial phase is defined as nutrients used up an growth stops?

stationary phase

13

What type of bacteria die quickly in death phase?

obligate fermenters [acid, superoxide, H2O2 build up]

14

What enzymes must obligate aerobes have?

superoxide dismutase SODcatalase

15

What enzymes must a facultative anaerobe (aerobe) have?

SODcatalase

16

What enzymes do aerotolerant anaerobes have?

SOD, but no catalase

17

What types of bacteria neither have SOD nor catalase?

obligate anaerobes

18

What type of bacteria are Bacillus and Mycobacterium?

obligate aerobes

19

What type of bacteria is Staph and Escherichia?

Facultative anaerobe

20

What type of bacteria are streptococcus?

aerotolerant anaerobes

21

What is a microaerophiles?

prefer reduced amounts of oxygen [Neisseria and Borrelia]

22

What is Gram+, Catalase+, coagulase+?

S. aureus

23

What groups of bacteria are catalase negative, cocci and gram positive?

streptococci and enterococci

24

What is gram positive, cocci, catalase negative, B hemolysis and bacitacin sensitive?

Group A strep

25

What is Gram positive, cocci, catalase negative, a hemolysis, and optochin sensitive?

streptococcus pneumoniae

26

What type of bacteria is a peptostreptococcus?

obligate anaerobe

27

anaerobe or aerobe Gram +Rod--listeria?

aerobe

28

anaerobe or aerobe Gram +Rod--lactobacillus?

aerotolerant anaerobe

29

anaerobe or aerobe Gram +Rod--bifidobacterium?

anaerobe

30

What are the 2 spore formers?

Bacillus [aerobe]Clostridium [anaerobes]