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Medicine Term One > Gram positive bacteria > Flashcards

Gram positive bacteria Flashcards

1
Q

What are the clinically significant Gram positive bacteria species

A

Staphylococcus aureas
Strep pneumonia
Strep pyogenes
Clodistrium difficile

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2
Q

What are the two from of cocci bacteria

A

Streptococci (Chains)

Staphycocci (Clusters)

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3
Q

What test differentiates staphylcocci

A

coagluse

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4
Q

What staphylcocci species is positive on coagulate test

A

staphyl aureas

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5
Q

What staphylcocci species is negative on coagulate test

A

staphyl epidermis

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6
Q

How are different species of streptococci distinguished

A

blood agar

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7
Q

Blood agar turns white in beta haemolytic for what two streptococci species

A

A - Strep pyogenes

B - Strep agalactiae

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8
Q

Blood agar turns green in alpha haemolytic (partial breakdown of RBC) for what two streptococci species

A

Strep Pneumonia

Strep. Viridans

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9
Q

What Bacili are anaerobic

A

Clostridium

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10
Q

What is the most clinically significant clostridium

A

clostridium difficile

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11
Q

What are 3 important families of gram positive bacteria

A

Staphylococci
Streptococci
Clostrdium

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12
Q

Where is clostrdium difficile found

A

Gut

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13
Q

Why shouldn’t antibiotics be used to treat clostrdium difficile

A

Will decrease competition by wiping out gut flora

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14
Q

What causes tetnus

A

Clostridium tetani

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15
Q

What does clostridium prefringes cause

A

Gas gangrene

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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

Medicine Term One (59 decks)

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