Gram Positive Flashcards

1
Q

7 +ve bacteria

A

Staphylococcus aureus, Staphylococcus epidermidis, streptococcus progenes, Staphylococcus pneumoniae, Staphylococcus viridans, clostridium difficile, listeria monocytogenes

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2
Q

Staphylococcus aureus shape/ID

A

Cocci, beta-haemolysis

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3
Q

Staphylococcus epidermis shape/ID

A

cocci

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4
Q

Streptococcus pyogenes shape/ID

A

Cocci forming chains, group A streptococcus, beta haemolytic

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5
Q

Strep pneumoniae shape/ID

A

cocci, alpha-haemolytic

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6
Q

Streptococcus viridans shape/ID

A

cocci, alpha haemolytic

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7
Q

Clostridium difficile

A

bacillus

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8
Q

Listeria monocytogenes

A

bacillus

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9
Q

Staphylococcus aureus virulence factors

A

catalase, coagulase, capsule, superantigen toxins, pro inflammatory lipotechoic acid in cell wall, forms biofilms, MRSA - beta lactamases

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10
Q

Staphylococcus epidermidis virulence factors

A

Catalase, biofilms

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11
Q

Streptococcus pyogenes virulence factors

A

biofilm, superantigens, M proteins, capsule

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12
Q

Streptococcus pneumoniae virulence factors

A

polysaccharide capsule, invasins and adhesins

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13
Q

Streptococcus viridans virulence factors

A

Low virulence: no capsule or lance field antigens

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14
Q

Clostridium difficile virulence factors

A

forms spores, enterotoxin and cyotoxin (kills GI cells)

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15
Q

Listeria monocytogenes virulence factors

A

Intracellular

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16
Q

Staphylococcus aureus commensal

A

upper resp tract, skin, GI tract

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17
Q

Staphylococcus epidermidis

A

skin flora

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18
Q

Streptococcus pyogenes

A

Nasal cavity

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19
Q

Streptococcus pneumoniae

A

Nasal cavity and URT

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20
Q

Streptococcus viridans

A

Oral cavity

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21
Q

Clostridium difficile

A

Gut flora

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22
Q

Listeria monocytogenes

A

?

23
Q

Staphylococcus aureus conditions

A

Osteomyelitis, septic arthritis, infective acute endocarditis, pneumonia, gastroenteritis
Skin infections: carbuncles, furuncles, necrotising fasciitis, cellulitis, impetigo
Cystic fibrosis patients colonisation

24
Q

Staphylococcus epidermidis conditions

A

Surfaces/devices/catheters
Septic arthritis on joint replacements
Device associated endocarditis

25
Q

Streptococcus pyogenes

A

Skin: erysipelas, scarlet fever, necrotising fasciitis, cellulitis, impetigo
Upper resp tract —> rheumatic fever

26
Q

Streptococcus pneumoniae condition

A

Meningitis, subacute endocarditis, lobar pneumonia

27
Q

Streptococcus viridans condition

A

Subacute endocarditis

28
Q

Clostridium difficile conditions

A

Diarrhoea (faecal-oral or antibiotic induced), soft tissues and blood

29
Q

Listeria monocytogenes conditions

A

Neonate/elderly meningitis,diarrhoea (rare -danger in pregnancy)

30
Q

Staphylococcus aureus treatment

A

Flucloxacillin (beta lactam), gentamicin (aminoglycoside)
MRSA: vancomycin (glycopeptide)

31
Q

MRSA

A

Methicillin-resistance staphlococcus aureus: vancomycin (glycopeptide)

32
Q

Staphylococcus epidermis treatment

A

Vancomycin (glycopeptide) and gentamicin (aminoglycoside)

33
Q

Streptococcus pyogenes treatment

A

Penicillin (beta lactam)

34
Q

Streptococcus pneumoniae treatment

A

Amoxicillin (beta lactam)
For meningitis: penicillin or vancomycin + ceftriaxone

35
Q

Streptococcus pneumoniae meningitis treatment

A

penicillin or vancomycin + ceftriaxone

36
Q

Streptococcus viridans treatment

A

Penicillin (beta lactam), and gentamicin (aminoglycoside)

37
Q

Clostridium difficile treatment

A

Remove antibiotics or add vancomycin (glycopeptide)

38
Q

Listeria monocytogenes treatment

A

Penicillin (beta lactam)
Avoid unpasteurised cheese)

39
Q

Cocci

A

Staphylococcus aureus, Staphylococcus epidermidis, streptococcus pyogenes, streptococcus pneumoniae, streptococcus viridans

40
Q

Staphylococcus aureus, Staphylococcus epidermidis, streptococcus pyogenes, streptococcus pneumoniae, streptococcus viridans have what in common

A

Cocci

41
Q

Beta haemolysis

A

Staphylococcus aureus, streptococcus pyogenes

42
Q

Staphylococcus aureus, streptococcus pyogenes both have what in common

A

Beta haemolysis

43
Q

Cocci forming chains

A

streptococcus pyogenes

44
Q

Alpha haemolysis

A

streptococcus pneumoniae, streptococcus viridans

45
Q

streptococcus pneumoniae, streptococcus viridans both have what in common

A

Alpha haemolysis

46
Q

Bacillus

A

Clostridium difficile, listeria monocytogenes

47
Q

Clostridium difficile, listeria monocytogenes both have what in common

A

Bacillus

48
Q

Beta lactam

A

Flucloxacillin, penicillin, amoxicillin

49
Q

Flucloxacillin, penicillin, amoxicillin

A

Beta lactam

50
Q

Gentamicin

A

Aminoglycoside

51
Q

Aminoglycoside

A

Gentamicin

52
Q

Vancomycin

A

glycopeptide

53
Q

glycopeptide

A

Vancomycin