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Flashcards in Gram positive bacteria Deck (28)
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1
Q
What are the clinically significant Gram positive bacteria species
A
Staphylococcus aureas
Strep pneumonia
Strep pyogenes
Clodistrium difficile
2
Q
What are the two from of cocci bacteria
A
Streptococci (Chains)
Staphycocci (Clusters)
3
Q
What test differentiates staphylcocci
A
coagluse
4
Q
What staphylcocci species is positive on coagulate test
A
staphyl aureas
5
Q
What staphylcocci species is negative on coagulate test
A
staphyl epidermis
6
Q
How are different species of streptococci distinguished
A
blood agar
7
Q
Blood agar turns white in beta haemolytic for what two streptococci species
A
A - Strep pyogenes
B - Strep agalactiae
8
Q
Blood agar turns green in alpha haemolytic (partial breakdown of RBC) for what two streptococci species
A
Strep Pneumonia
Strep. Viridans
9
Q
What Bacili are anaerobic
A
Clostridium
10
Q
What is the most clinically significant clostridium
A
clostridium difficile
11
Q
What are 3 important families of gram positive bacteria
A
Staphylococci
Streptococci
Clostrdium
12
Q
Where is clostrdium difficile found
A
Gut
13
Q
Why shouldn't antibiotics be used to treat clostrdium difficile
A
Will decrease competition by wiping out gut flora
14
Q
What causes tetnus
A
Clostridium tetani
15
Q
What does clostridium prefringes cause
A
Gas gangrene
16
Q
Clostrdium difficile releases a toxin that causes what
A
Collitis
17
Q
How is clostridium difficile detected
A
Antigen test
18
Q
Where is staphyl epidermis located
A
skin
19
Q
When does staphyl epidermis become pathogenic
A
If first line of defence broken in immunosuppressed people
20
Q
Where is staphyl aureas located
A
mainly the nose
21
Q
what are the possible diseases caused by staphyl aureas
A
Pneumonia
Septicaemia
Skin infections - boils
Food poisoning
22
Q
What staphyococci is more pathogenic
A
staphyl aureas is more pathogenic that staphyl epidermis
23
Q
What are the most important antigen group of beta haemolytic streptococci
A
A
B
D
24
Q
What does A strep proyogenes located and what does it cause
A
skin
necotisfascitis
25
Q
What group of haemolytic streptococci cause meningitis
A
B. Strep agolactiae
26
Q
What alpha haemolytic streptococci is part of normal oral flora
A
Strep. Viridans
27
Q
What does the bacteria strep viridans cause if you have poor dental care
A
endocartis - infected viens
28
Q
What does strep pneumonia cause
A
pneumonia
meningitis
septicaemia

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